The First Team FT310 Basketball Backboard Height Adjuster provides infinite height adjustment from regulation 10 feet down to 8 feet to your wall-mounted basketball system. It works with any backboard that has 36in x 62in space mounting brackets. It is the only height adjuster warranted against dunking and operates easily from floor level with a simple hand crank. The First Team FT310 Basketball Backboard Height Adjuster is a must for any school or recreation center running youth programs.