National Hardware N280-016 Door Roller, 1-7/8 in Dia Roller, Steel

National Hardware Door Roller, Ball Bearing, Roller Width: 7/16 in, 1-7/8 in Dia Roller, 7/16 in Dia Shaft, Steel, 4-3/8 in L Dimensions, For: 2 in Track Garage Doors and Overhead Sectional Wood and Steel Garage Doors