What are hockey pucks made of?

A hockey puck is a disk made of vulcanized rubber that serves the same functions in various games as a ball does in ball games. The best-known use of pucks is in ice hockey, a major international sport. A hockey puck has also been referred to as a "Flat Ball".

Ice hockey and its various precursor games utilized balls until the late 19th century. By the 1870s, flat pucks were made of wood as well as rubber. At first, pucks were square. The first recorded organized game of ice hockey used a wooden puck, to prevent it from leaving the rink of play. Rubber pucks were first made by slicing a rubber ball, then trimming the disc square. The Victoria Hockey Club of Montreal is credited with making and using the first round pucks, in the 1880s.

Many indigenous persons throughout North America played a version of field hockey which involved some type of "puck" or ball, and curved wooden sticks. It was first observed by Europeans being played by Mi'kmaqs in Nova Scotia in the late 17th century. It was called "ricket" by the Mi'kmaqs. Eventually, they began to carve pucks from cherrywood, which was the puck of preference until late in the century when rubber imported by Euro-Americans replaced the wood.