1 3/8 Inch Solid Copper Small Round Knob with Backplate (Antique Copper Finish) - this cabinet knob and backplate combo is made from solid copper with a stylish hand hammered textured. It measures 1 3/8 inches in diameter with a 1 1/2 inches projection. The knob diameter is 1 1/4 inches. This style of cabinet backplate is shown in an Antique Copper Finish and it comes in several other finishes. Includes mounting hardware.