Color: clear crystal glass + gold zinc alloy base Shape: Diamond shaped Knobs, Glass Diameter: 1.2inch/ 30mm Base Diameter: 0.6inch/ 15mm Total Height: 1.1inch/ 28mm 2 sizes of screws: 0.98 inch, Suitable for board thickness of 0.55 - 0.79 inch. Note: Please measure the thickness of your board before purchasing. Features of Crystal Glass Knobs Material: Lead-free high quality crystal glass and zinc aluminum alloy?clear shiny appearance, sparkling like a diamond fashionable .Can be installed on door, drawer, cabinet, cupboard, etc. Super Easy to Install: We offer Matching screws that help you install,drill holes in the mounting plate, then pass the screws from the back of the plate and tighten the screws. Please allow 1-2mm error due to manual measurement, please make sure you do not mind before you bid. Welcome to our store! Enjoy quality and healthy life! Any problem please feel free to contact us first so that we can supply the best service for you.