Lifetime 1479 Courtside Height Adjustable Portable Basketball System, 48 Inch Shatterproof Backboard 48"x 30" x 2" Shatter-Proof Fusion backboard is virtually unbreakable Quick Adjust II height adjustment mechanism easily adjusts from 8 to 10 feet using a broomstick 31-Gallon portable base provides stability and portability; Can be filled with water or sand Slam-It rim with spring-back action is built to take a slam Designed to withstand the harshest elements; Backed by a 5-year limited manufacturer warranty