PLEASE NOTE THIS ITEM CANNOT SHIP VIA 3 DAY DELIVERY. Change your gym from adult to youth league in less than 2 minutes Easily adjusts from 10' to 8' and anywhere between using hand crank operated from the floor Easy to read height indicator labels not found on other height adjusters 1' Acme lead screw with thrust bearings and grease fittings Heavy 2' square silver powder coated steel structure moves backboard 4 14' closer to the free throw line Most fan boards have 20' x 35' mounting Most 42' x 72' boards have 36' x 62' mounting Most 48' x 72' boards have 42' x 62' This item ships by truck, so please include your phone number when ordering so that you can be contacted to arrange delivery.