The Diamond Turf 6' On-Deck Circle. Made from high quality spike-proof turf with 36 oz. durable 5mm foam backing. Colored turf green. 6' diameter. Weight: 40 lbs. per pair. Intelligent ball players utilize their time in the on-deck circle analyzing the current situation of the game and how they can best assist their team during their upcoming at bat. As a coach, helping a player establish an on-deck routine can proove to be a valuable tool for an enhanced performance. Warming up is just one component of what goes on while in the Diamond Turf 6' On-Deck Circle.