PRO-DECK ON DECK CIRCLE (PAIR) Constructed of an all-weather foam, and super thick and flexible 75 mil PVC surface with an overall thickness of 3/8" that protects our exclusive Chroma-Bond® Digital Imprinting, the batters metal spikes sink in and wedge between the mini coin pattern surface for added traction to give your players quality swings to ensure your players are warmed up before stepping to the plate.