Garage Door Roller, Short Stem, Steel, Mill Finish, Shaft Length 4 1/2 In., Shaft Dia 7/16 In., Max. Wheel Dia. 1 7/8 In., Dia. 2 In., Steel Ball Bearings, Number of Wheels 1, For Use With 2 In Track, Package Quantity 4. This item has been restricted from sale in the following state (s): []