Lifetime 71281 In Ground Power Lift Basketball System, 52 Inch Shatterproof Backboard 52" Steel Framed Shatterproof backboard is constructed of High Density Polyethylene for superior strength and durability Features Power Lift height adjustment mechanism; easily adjusts from 7.5 to 10 feet 3 Piece 3.5" round pole features a friction-weld joint that safeguards against unwanted movement Backed by a 5-year limited manufacturer warranty. Adjust the height of the backboard with just a squeeze of the handle UV protection and powder-coated steel. Weather resistance to discoloration and rusting