These are absolutely adorable and a great way to reface an existing piece of furniture Give a decorative touch to dresser drawers, cabinets, doors and more with this Ceramic Knobs. All our products are exquisitely handmade, one piece at a time make identical items.1. Length of screw : 1.5 to 1.7 inch (3.8 to 4.3 cms)2. Length of screw after fastening inner cap : 1.4 to 1.6 inch (3.6 to 4.1 cms)3. Total knob length (end to end) : 2.1 to 2.5 inch (5.3 to 6.4 cms)4. Diameter of ceramic knob dome : 1.5 to 1.7 inch (3.8 to 4.3 cms)5. It would fit easily to cabinet board width up to 1.1 inch (2.8 cms)6. A hand drill is required to drill a 0.125 inch (0.317 cms) hole in the board7. For more clarification on size, see the picture “How to install this knob”