This backboard accessory allows the goal to be adjusted to any height between 8' to 10' to accommodate play at all ages. Lower your existing backboard and goal for youth play without compromising the stability of the equipment. The 1147 is a manual adjust a goal with attachment for fan shaped backboards with 35' x 20' mounting. Features Height changed with an awning type hand crank Features a screw rod with high enough gear ratio to hold backboard in place at any height Goal height indicator is easily visible from the floor for accurate adjustment. Dual PostWall Mount Attachment Board and goal not included