Lifetime 50 Inch Shatter Proof Portable Basketball Hoop 50" Shatterproof Makralon polycarbonate backboard gives you the look and feel of professional glass! All-weather resistant, designed to withstand the harshest elements Action Grip height adjustment mechanism easily adjusts from 7.5 to 10 feet with one hand Solid-steel Slam-It Rim with double-compression springs and welded net hooks is built to take a slam Portable base can be filled with water or sand; Backed by a 5-year limited manufacturer warranty