This Lifetime hoop comes with a 50 in. shatter proof backboard of Makrolon™Polycarbonate, which is virtually unbreakable. The XL roller base provides the extra stability you need with the portability you desire. Just fill the base with sand or water. 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.This system features Lifetime’s Action Grip® height adjustment which allows you to easily adjust the height of the backboard from 7.5 ft to 10 ft with just a squeeze of the handle. With a Lifetime hoop, you can be sure you’re getting a top quality product—strong and durable. Our basketball systems are also constructed with UV-protected graphics to resist discoloration and powder-coated steel to prevent rusting. Built for fun. Built to last. Made in USA from US and imported parts. Assembly required. Covered by a 5 yr. warranty in US and Canada.