General description Perfect for decorating, these vintage door knobs are made of zinc alloy with a finely polished chrome-plated galvanized metal base. They offer a unique way to update your outdated furniture and add a personal touch to your home. Technical specifications Handle size: 30 mm Height: 24 mm Bottom diameter: 14 mm Screw length: M4 * 22 mm Installation Recommended for boards with a thickness of less than 17 mm Easy to install: drill a hole in the board, insert the screws, and securely fasten the knob Usage These knobs are suitable for most cabinets, wardrobes, dressers, cupboards, and anywhere you want, creating a better and beautiful atmosphere.