Cosmas 6542SN Satin Nickel Round Cabinet Hardware Knob with Backplate - 1-1/4" Diameter High Quality Satin Nickel Finish Knob Diameter: 1-1/4" --- Backplate Diameter: 1-1/4" --- Base of Knob Diameter: 5/8" Projection with Backplate: 1-3/8" --- Projection without Backplate: 1-1/4" Can be used with or without backplate Polybagged with 1" Mounting Screw Included