Golf equipment
Encyclopedia
Golf equipment encompasses the various items that are used to play the sport of golf
Golf
Golf is a precision club and ball sport, in which competing players use many types of clubs to hit balls into a series of holes on a golf course using the fewest number of strokes....

. Types of equipment include the golf ball
Golf ball
A golf ball is a ball designed to be used in the game of golf.Under the Rules of Golf, a golf ball weighs no more than 1.620 oz , has a diameter not less than 1.680 in , and performs within specified velocity, distance, and symmetry limits...

itself, implements designed for striking the golf ball, devices that aid in the process of playing a stroke, and items that in some way enrich the playing experience.

### Ball

The minimum allowed diameter
Diameter
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints are on the circle. The diameters are the longest chords of the circle...

of a golf ball is 42.67 mm and its mass may not exceed 45.93 g. Modern golf balls have a two-, three-, or four-layer design constructed from various synthetic materials. The surface usually has a pattern of 300-450 dimples designed to improve the ball's aerodynamics
Aerodynamics
Aerodynamics is a branch of dynamics concerned with studying the motion of air, particularly when it interacts with a moving object. Aerodynamics is a subfield of fluid dynamics and gas dynamics, with much theory shared between them. Aerodynamics is often used synonymously with gas dynamics, with...

. The method of construction and materials used greatly affect the ball's playing characteristics such as distance, trajectory
Trajectory
A trajectory is the path that a moving object follows through space as a function of time. The object might be a projectile or a satellite, for example. It thus includes the meaning of orbit—the path of a planet, an asteroid or a comet as it travels around a central mass...

, spin and feel. Harder materials, such as Surlyn, usually result in the ball's traveling longer distances, while softer covers, such as Urethane, tend to generate higher spin, more "feel" and greater stopping potential. Golf balls are separated into three groups depending on their construction: two-, three-, or four-piece covers. Generally four-piece golf balls tend to be the most expensive, though price is no assurance of quality.

### Clubs

A player usually carries several clubs during the game (but no more than fourteen, the limit defined by the rules). There are three major types of clubs, known as woods
Wood (golf)
A wood is a type of club used in the sport of golf. Woods are used to hit the ball farther than any other type of golf club....

, irons
Iron (golf)
An iron is a type of club used in the sport of golf to propel the ball towards the hole. They are so-called because historically the clubhead was generally made from iron. Whilst the vast majority of modern irons are still made from iron, it is almost always its stronger and more durable alloy,...

, and putters
Putter (golf)
A putter is a club used in the sport of golf whose design differs from that of irons and woods. They are generally used from very close distances to the cup, generally on the putting green, though certain courses have fringes and roughs which are suitable for putting. While no club in a player's...

. Wedges are irons used to play shorter shots. Woods are played for long shots from the tee or fairway, and occasionally rough, while irons are for precision shots from fairways as well as from the rough. A new type of club called a hybrid
Hybrid (golf)
A hybrid is a type of club used in the sport of golf with a design which differs from that of irons and woods. The name "hybrid" comes from genetics to denote a mixture of two different species with desirable characteristics of both, and the term here has been generalized, combining the advantages...

combines the straight-hitting characteristics of irons with the easy-to-hit characteristics of higher-lofted woods. A hybrid is often used for long shots from difficult rough. Hybrids are also used by players who have a difficult time getting the ball airborne with long irons. Wedges are played from difficult ground such as sand or the rough and for approach shots to the green. Putters are mostly played on the green, but can also be useful when playing from bunkers or for some approach shots. Putters have minimal loft, forcing the ball to stay on the putting surface when struck.

### Ball markers

When on the green, the ball may be picked up to be cleaned or if it is in the way of an opponent's putting line. Its position must first be marked using a ball marker (usually a flat, round piece of plastic or metal, generally a coin).

### Tees

A tee is an object (wooden or plastic) that is pushed into or placed on the ground to rest a ball on top of for an easier shot; however, this is only allowed for the first stroke (tee shot or drive
Drive (golf)
In golf stroke mechanics, a drive, also known as a tee shot, is a long-distance shot played from the tee box, intended to move the ball a great distance down the fairway towards the green.-Longest drives:...

) of each hole. Conventional golf tee
Tee
A tee is a stand used to support a stationary ball so that the player can strike it, particularly in golf, tee ball, American football, and rugby.- Etymology :...

s resemble nail
Nail (engineering)
In woodworking and construction, a nail is a pin-shaped, sharp object of hard metal or alloy used as a fastener. Formerly wrought iron, today's nails are typically made of steel, often dipped or coated to prevent corrosion in harsh conditions or improve adhesion...

s with a small cup on the head and are usually made of wood or plastic. Wood tees are generally very inexpensive and quite disposable; a player may damage or break many of these during the course of a round. Plastic tees are generally more expensive and last longer. The length of tees varies according to the club intended to be used and by personal preference; longer tees (3-3.5") allow the player to position the ball higher off the ground while remaining stable when planted, and are generally used for modern woods. They can be planted deeper for use with other clubs but tend to break more often. Shorter tees (1.5-2.5") are suitable for irons and are more easily inserted and less easily broken than long tees.

Alternately, the rules allow for a mound of sand to be used for the same function, also only on the first shot. Before the invention of the wooden spike tee, this was the only accepted method of lifting the ball for the initial shot. This is rarely done in modern times, as a tee is easier to place, hit from, and recover, but some courses prohibit the use of tees either for traditional reasons, or because a swing that hits the tee will drive it into or rip it out of the ground, resulting in damage to the turf of the tee-box. Tees also create litter if discarded incorrectly when broken.

### Golf bag

A golfer typically transports golf clubs in a golf bag. Golf bags are usually nylon or leather and are cylindrically constructed around a plastic frame, but historically have been made from other materials such as elephant's penis. Golf bags have several pockets designed for carrying various equipment and supplies required over the course of a round of golf. Golf bags can be carried, pulled on a two-wheel pull cart or harnessed to a motorized golf cart during play. Golf bags have both a hand strap and shoulder strap for carrying, and sometimes have retractable legs that allow the bag to stand upright when at rest.

### Golf cart

Golf carts are motorized vehicles used to transport golf clubs
Golf club (equipment)
A golf club is used to hit a golf ball in a game of golf. Each club is composed of a shaft with a grip and a clubhead. Woods are mainly used for long-distance fairway or tee shots; irons, the most versatile class, are used for a variety of shots; Hybrids that combine design elements of woods and...

and/or golfers along the golf course during a round of golf. The traditional way to play was to walk but the use of golf carts is becoming more common.

### Towels

Most golf bags have a ring to which a player can tie or clip a golf towel, used to wipe hands and clean balls and club faces. Some of these towels can be quite specialized, with a carabiner
Carabiner
A carabiner or karabiner is a metal loop with a sprung or screwed gate that is used to quickly and reversibly connect components in safety-critical systems. The word comes from "Karabinerhaken", meaning "hook for a carbine" in German.-Use:...

or other clip to attach it to the bag with a grommet
Grommet
thumb|right|250px|Some rubber grommets.A grommet is a ring inserted into a hole through thin material, such as fabric. Grommets are generally flared or collared on each side to keep them in place, and are often made of metal, plastic, or rubber. They may be used to prevent tearing or abrasion of...

used on the towel for durability, and incorporating rougher materials in certain sections of the towel for club and ball cleaning with softer weaves elsewhere for drying hands and balls. Other cleaning products abound, from motorized ball cleaners to an array of brushes for various types of clubs as well as balls and shoes.

### Club head covers

Clubhead covers protect the clubs from striking each other and from weather and incidental damage while in the bag, make clubs more identifiable at a glance, and provide a personal touch to a player's clubs.

### Ball mark repair tool

A ball mark repair tool (or pitchfork) is used to repair a ball mark (depression in the green where a ball has hit the ground). Some tees contain such a tool at the end, for pure convenience when on the green. To repair a ball mark, one pushes the tool next to the mark and pushes gently inwards from all sides, loosening the compacted turf to allow rapid regrowth of grass, and then flattens the mark with the smooth flat bottom of the putter to smooth the putting surface.

### Other aids

Other tools exist to aid the golfer in various ways.
• Ball retrievers are telescoping poles with a device at the end that scoops up and traps golf balls, and are used for reclaiming a ball from a water hazard.
• Rangefinders allow a golfer to measure exact distance to the hole from their current position; they are illegal according to Rule 14-3 of the rules of golf
Rules of golf
The rules of golf are a standard set of regulations and procedures by which the sport of golf should be played. They are jointly written and administered by the R&A the governing body of golf worldwide except in the United States and Mexico, which are the responsibility of the United States Golf...

, but the USGA allows individual course clubs to institute a local rule permitting rangefinders, and they are common among recreational golfers. The typical rangefinder is an optical device that is aimed by sighting the scope on the flag and using the calibrated gauge in the optics to estimate the distance based on the flagstick's apparent height. Other rangefinders estimate range using a calibrated focus control; the user sights the target, brings it into focus, and reads the distance mark on the focus control. Newer "laser rangefinders" operate by sighting any target and pressing a switch to take a very precise distance reading via radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...

. Newer golf carts often include GPS tracking which, combined with an electronic map of the course, can serve a similar function.
• Stroke counters help a player keep track of the number of strokes he or she has made during a hole, an entire round, or both. The simplest devices are thumbwheels or "clickers" that a player advances by one after each stroke and provide a total for the player to write on their scorecard after each hole; newer variations have various degrees of computational power added and can keep score for multiple holes, total scores, and keep track of over/under par statistics. These more advanced counters are generally referred to as "electronic scorecards". Counters by themselves are allowed under strict rules
Rules of golf
The rules of golf are a standard set of regulations and procedures by which the sport of golf should be played. They are jointly written and administered by the R&A the governing body of golf worldwide except in the United States and Mexico, which are the responsibility of the United States Golf...

, but some multi-functional devices incorporate additional banned features like rangefinders and as such the entire device becomes illegal.
• Positional guides encompass a wide variety of devices meant to improve a player's stance or swing. Lasers attach to the shaft of a putter and project a "putting line" onto the ground. Specialized tapes attach to the clubhead and provide clues as to how the head is hitting the ground or the ball for future correction or club adjustment. These are also illegal in tournament play, but are invaluable while practicing.
• Adhesive clubface surfaces attach to the face of irons or woods and create extra backspin to reduce roll or make the face of the club softer for more consistent shorter-distance shots. These are illegal in competitions.
• Ball washer
Ball washer
A ball washer or ball shagger is a piece of equipment for cleaning dirty golf balls. Because golf balls have a dimpled surface to improve their aerodynamic properties, increasing both distance and control, and are used primarily on grassy surfaces, they tend to collect dirt and grass easily, which...

s may be used to clean golf ball
Golf ball
A golf ball is a ball designed to be used in the game of golf.Under the Rules of Golf, a golf ball weighs no more than 1.620 oz , has a diameter not less than 1.680 in , and performs within specified velocity, distance, and symmetry limits...

s

## Clothing

Golf clothing includes gloves, shoes, and other specialized golf attire. Specialized golf attire (including shirts, pants, and shorts) is designed to be nonrestrictive to a player's range of motion and to keep the player warm or cool and dry while being fashionable.

### Gloves

Golfers also often wear gloves that help grip the club and prevent blistering. Normally only one glove is worn on the non dominant hand. The increased grip and control allows for harder swings to be made with more control, increasing distance.

### Shoes

Many golfers wear special shoes with spikes attached to the soles. These can be made of metal or plastic (plastic spikes are also known as "soft spikes") designed to increase traction thus helping the player to keep his/her balance during the swing, on greens, or in wet conditions. In an attempt to minimize the severity of spike marks made on greens, many golf courses have banned metal spikes, allowing only plastic spikes during play.