The Reebok RBK 51277 Portable Basketball Hoop board features a 48 Inch shatter guard backboard with black blow molded frame, Slam-It breakaway basketball rim and a 37 gallon portable basketball hoop base. The Reebok 51277 Portable Basketball System Power Lift Pneumatic height adjust mechanism adjusts the basketball hoop from 7.5 to 10 feet. Simply squeeze the handle and the pneumatic mechanism helps to raise or lower the basketball goal height so that players of any age can enjoy the game at their level.