【3 SIZES OF SCREWS 】Each knob come with 3 sizes of screws to meet different needs: 20mm screws 15pcs; 25mm screws 15pcs; 28mm screws 15pcs; Total 15pcs crystal knobs and 45pcs Screws. 【SHINY APPEARANCE】With clear cut crystal glass and alloy base, glittering and sparking appearance, and lovely diamond shape, when the light hits the facets of the knobs, they shine and leave beautiful prisms on furniture. Knobs will add glamor to any furniture and a touch of elegance to rooms. 【WIDE APPLICATIONS】Crystal knobs can be used for wardrobe, cabinet, chest of drawers, drawers, bathrooms door, bin door, nightstand, bedroom door, dressers, bookcase, cupboard in kitchen, etc. Our knobs are good decoration for your home or office. 【PREMIUM MATERIAL】Clear diamond cut crystal knob with chrome-plated alloy base.the adhesion between the crystal and the base is enhanced, can support the crystal for a long time.Each knob is individually packed against scratching. 【EASY TO INSTALL】 Drill a hole on the board where you want to install, pass through the hole with screw, and then tight the screw to fix knob. Our screws have a unique tail design and normally do not require washers.