This portable basketball system from Lifetime Products features a 54-inch steel-framed shatter-proof backboard with a Power Lift? height adjustment mechanism that adjusts the backboard from 7.5 to 10 feet high. The basketball backboard is also designed with a Slam-It? Pro break-away rim with compression springs to handle those powerful slam dunks. Just fill the portable base with sand or water to provide the necessary stability. Wheels on the base allow you to relocate the system if desired. Backed by a 5 yr. limited factory warranty in the U.S. and Canada.