Foosballs are the most commonly replaced part of a foosball table as the outer surface of the ball tends to wear smooth reducing ball control and many times they just become lost or missing. It is a great idea to always have several spares on hand. Foosball balls come in many different styles with different playing qualities. The Jett Trial foosball pack contains one Black and White 36mm foosball, one 36mm Cork foosball, one 36mm Orange foosball and one 36mm White foosball. This pack offers you 4 different game playing options from the traditional orange or white ball to the fun Black and White soccer-like ball or the cork ball which can be used for training.