The 60" Stadium Glass system is made up of state-of-the-art technolgies for home use. This includes 2 sheets of tempered glass fused together with a thin layer of adhesive, creating superior rebound while ensuring the safety of players if the backboard were to be damaged. The Pro Flex rim is mounted directly to the reinforced lower backboard frame bar. The Power Glide Steel Cylinder System utilizes the latest in rotational technology and the cross stabilizing braces on the arm support reduce torque and provide incredible structural stability