Roller Fixture Steel Silver Galvanized Finish Length (In.) 3 3/4 in Height (In.) 1/2 in Width (In.) 2 7/16 in Depth (In.) 3 13/16 in Inside Dia 1/2 in Wheel Diameter Not Applicable Roller Width/Dia (In.) No Roller Surface Mounting Mounting Hole Size (In.) 9/32 in Number of Wheels 0 Steel Hardware Included For Use With Sectional Garage Door