Garage Door Roller Plastic Steel White Unfinished Finish Shaft Length 4 in Length (In.) 3 3/4 in Height (In.) 1 7/8 in Width (In.) 4 in Depth (In.) 1 7/8 in Outside Dia 1 7/8 in Wheel Diameter 1 7/8 in Max Wheel Dia (In.) 1 7/8 in Surface Mounting Mounting Hole Size (In.) 15/32 in Steel Bearings Number of Wheels 0 Steel Hardware Not Included Requires Hardware For Use With Sectional Garage Door 1 Pair