Lifetime’s backboard mounting kit is uniquely designed with a Y-shaped bracket to ensure added stability and improved rebound quality. Lifetime’s backboard mounting kit is constructed of galvanized steel so it is rust resistant and will look great for years to come. Will fit all Lifetime backboards that attach via backboard brackets. Will not fit backboards that directly attach to the extension arms. Includes backboard brackets to attach board to mounting kit. The Lifetime mounting kit includes brackets for a 3.5 in. pole. The wall and pole option have a 9.5 in. offset from the mounting surface to the backboard. Note:With the roof option you will need to buy some additional hardware to connect the brackets to the roof. Compatible with all Lifetime Backboard Combos.