With the Lifetime 52 inch Action Grip Portable Basketball System, you just fill the base with sand or water to provide the necessary stability. No concrete installation required. Water is easier to manage as far as filling, moving, and draining the base. System has been tested to withstand up to 40 mph winds when properly filled with water. Sand provides more rigidity, is more suitable if you want your system to withstand higher winds, aggressive play, and leaking. Lifetime"s XL Portable Basketball System is designed with a 52 inch shatter proof backboard of Makrolon polycarbonate with Slam-It rim and easy Action Grip height adjustment feature. The powder-coated steel pole is rust resistant and the pro-glass look backboard is UV-protected to resist discoloration. This is a system that will last through many years of competitive fun! 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.