Plastic models, often called scale model

Scale model

A scale model is a physical model, a representation or copy of an object that is larger or smaller than the actual size of the object, which seeks to maintain the relative proportions of the physical size of the original object. Very often the scale model is used as a guide to making the object in...

s, are models manufactured as kit

Kit

-Animals:* kit, a young ferret* a short form of kitten, a young cat* Kit fox, a relatively common North American fox* Kit, a group of domestic pigeons trained to perform together in competitions-Companies and organisations:...

s which are assembled by hobby

Hobby

A hobby is a regular activity or interest that is undertaken for pleasure, typically done during one's leisure time.- Etymology :A hobby horse is a wooden or wickerwork toy made to be ridden just like a real horse...

ists, and intended for static display.
The most popular subjects of plastic models by far are vehicles such as aircraft

Aircraft

An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

, ship

Ship

Since the end of the age of sail a ship has been any large buoyant marine vessel. Ships are generally distinguished from boats based on size and cargo or passenger capacity. Ships are used on lakes, seas, and rivers for a variety of activities, such as the transport of people or goods, fishing,...

s, automobiles, and armored vehicles such as tanks. The majority of models depict military vehicles, due to the wider variety of form and historical context compared to civilian vehicles.