National Hardware N280-073 Door Roller, 1-3/4 in Dia Roller, Steel

National Hardware Door Roller, Ball Bearing, Roller Width: 0.35 in, 1-3/4 in Dia Roller, 7/16 in Dia Shaft, Steel, Zinc, 4 in L Dimensions, For: 2 in Track Garage Doors and Overhead Sectional Wood and Steel Garage Doors