The Lifetime 54 inch square shaped In-Ground Basketball System provides superior stability. This in-ground system comes with our 54 inch shatter proof backboard made from Makrolon polycarbonate and high performance Slam-It Pro Rim. Our in-ground hoops are constructed from rust-resistant, powder-coated steel and UV-protected backboards to resist discoloration. Lifetime recommends using a ground sleeve with this in-ground hoop. A ground sleeve gives you the rigidity of in-ground hoops with the option of later removal if necessary. This is a great basketball system for year-round outdoor fun with friends and family. Since 1986, Lifetime has transformed basketball by bringing the game home. We are the world"s leading manufacturer of residential basketball equipment and we continue to grow in the sporting goods industry. With soccer goals, tetherball equipment, and a large assortment of portable basketball systems, in-ground goals, wall mounts, and heavy-duty high-end systems, Lifetime"s sporting goods equipment is made to fit everyone"s game.