Designed to sit in a driveway, backyard, or any other open space, the Spalding 50-inch portable basketball system will turn your paved landscape into a jump-shooting haven. The system starts with a 50-inch polycarbonate backboard with a heavy-duty steel frame. The board offers the same action as glass backboards, helping you shoot layups and bank shots with confidence. The Pro Slam rim, meanwhile, holds up well against the force of emphatic dunks--a must for modern hoops. And hops-challenged players will love the hoop's ExactaHeight lift system, which lets you adjust the height from 7.5 to 10 feet in 6-inch increments. Other features include a two-wheel, 34-gallon base that fills with sand or water for maximum stability and safety; a front cover that acts as a rebounder during play; and a three-piece, 3.5-inch round pole set at a 20-degree angle from the base.