is a carbonated soft drink originally sold in Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

 which was introduced in Kobe

Kobe

, pronounced , is the fifth-largest city in Japan and is the capital city of Hyōgo Prefecture on the southern side of the main island of Honshū, approximately west of Osaka...

 by Alexander Cameron Sim.
Ramune is widely known for the distinctive design of its bottle

Bottle

A bottle is a rigid container with a neck that is narrower than the body and a "mouth". By contrast, a jar has a relatively large mouth or opening. Bottles are often made of glass, clay, plastic, aluminum or other impervious materials, and typically used to store liquids such as water, milk, soft...

, often called Codd-neck bottles after the inventor, Hiram Codd

Hiram Codd

Hiram Codd was an English engineer. In 1872, he patented a bottle filled under gas pressure which pushed a marble against a rubber washer in the neck, creating a perfect seal.-Early life:...

. They are made of glass and sealed with a marble

Marble (toy)

A marble is a small spherical toy usually made from glass, clay, steel, or agate. These balls vary in size. Most commonly, they are about ½ inch in diameter, but they may range from less than ¼ inch to over 3 inches , while some art glass marbles fordisplay purposes are over 12 inches ...

; the codd head is held in place by the pressure of the carbonation in the drink.