This hoop gives you the convenience of a portable system while delivering the high rebound found on the professional court. It has a tempered glass backboard equipped with arena-style padding and a heavy-duty breakaway rim built for vicious dunks. The screw jack lift system is simple enough for even the youngest players to use, and the ultimate hybrid base takes less time to assemble than a traditional base. You simply load in the water and bags of sand, then cover it all up for a clean look. Backboard Size: 54″ Tempered glass board with arena-style padding 16″ offset Steel board frame with aluminum trim Arena slam breakaway rim 7.5′ to 10′ height adjustment Detachable handle 4″ square steel pole Ultimate hybrid base fills with 19 gallons of water and five 50-pound bags of sand Rebounder on base Base Dimensions: 49.8″ x 29.2″ x 10.2″ Two wheels Includes ground stake Designed for outdoor residential play Packaging Dimensions: 57.87″ x 38.58″ x 16.93″