Lifetime’s Front Adjust Portable Basketball Hoop is designed with a 52 inch shatter proof backboard, a Slam-It rim with spring-back action, and our latest innovative adjustable height mechanism, the Front Adjust feature. This portable basketball hoop has lots of advantages over regular basketball hoops. The rollerbase design allows you the convenience of simply rolling the system around your premises as needed. The XL base is designed to be filled with water to provide the necessary stability and rigidity. You"ll also appreciate the easy access Front Adjust handles which make it easy for players of all sizes to adjust the height of the backboard.