1 3/8 Inch Diameter Black and White Copper Speckled Glass Cabinet or Furniture Knob (Polished Chrome Finish) - this cabinet knob is made from glass and it measures approximately 1 3/8 inches in diameter. The projection is approximately 1 inch. This glass knob has a black and white background, and includes copper specks. The knob comes with a Polished Chrome base and each knob comes with the mounting hardware. Note that each knob is made individually and will not match the photograph exactly.