[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 before ordering) [Applicable] The knob adopts modern design, suitable for most closets, wardrobes, dressing table drawers and others, can also be used as a hook for more convenience, Weight: 0.8377565956 pounds, Manufacturer: KAHEIGN