High quality: Made of high-quality zinc alloy, with polished chrome-plated zinc metal base, strong and durable, anti-corrosion and rust-proof, smooth surface without edges and corners . Matte black: matte black surface, elegant and fashionable knobs can match any style of home design, it is a unique way to revitalize old furniture and personalized home . Easy to install: Just drill a hole in the board, then insert the screw and install the crystal knob firmly, come wtih 24pcs screws to help install easily . Size: The diameter of the knob is 30mm, the height: 21mm, and the screw length is 26mm (please measure the thickness of the drawer becomptiable withe ordering) . Applicable: The knob adopts modern design, suitable comptiable with most closets, wardrobes, dressing table drawers and others, can also be used as a hook comptiable with more convenience . About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks comptiable with your cooperation and we'll make you feel satisfied.