The Sterling True Bounce floating rubber cushions are made of 100% gum rubber. This is the cushion of choice for rooms running leagues or holding tournaments. These cushions are made to the exact specifictions of he K-66 profile. The pure gum rubber cushions superior quality gives these cushions greater accuracy on bank shots and outlast economy cushions with fillers. They have the K66 profile, which is the standard for most pool tables. Measures 1-1/16th x 1-1/8th. 48 in length, these cushions are used on 8' Oversize or 9' pool tables. Six pieces per set.