Door Roller, 4 1/2 In., Dia. 2 In., PK4, American Garage Door Supply, Mfr#: R2147

Garage Door Roller, Short Stem, Steel, Mill Finish, Shaft Length 4-1/2 in, Max. Wheel Dia. (In.) 1 7/8 in, Roller Width/Dia. (In.) 2 in, Steel 10 Ball Bearings, Number of Wheels 1, Steel, For Use With 2 in Track, Package Quantity 4