Lifetime 1531 Portable Basketball System, 48 Inch Shatterproof Backboard 48" Shatterproof Fusion backboard with a Makralon playing surface and fade resistant graphics provides a durable pro-glass look! Features Quick Adjust II height adjustment mechanism; easily adjusts from 8 to 10 feet Surface thickness: 0.09 inch (2.5 mm). 31 Gallon base provides stability and portability; Can be filled with water or sand Rust-resistant all weather finish and all-weather nylon net; can be used indoor and outdoor Backed by a 5-year manufacturer warranty