knobs have come with fitting screws for installation, which can fix your drawer tightly. The black cabinet knobs are made of aluminum alloy material with beautiful looking finished, which are durable and strong, more important it hard to get rusty. Each handle is supplied with a fitting screw. Cabinet hardware black knobs can be a quick fit with no hassle, not easy to drop. The simple and elegant design makes these kitchen cabinet knobs long-lasting. The drawer knobs are easy to clean, not easy to stain. The knobs are suitable for kitchen cabinets, doors, drawers, shoe cabinets, chests, bookcases. The knobs are suitable for different styles of cabinets, use this hardware to decorate your cabinets or update some old furniture, bring you a modern look. A beautiful addition to your home. Comes with fitting screws for installation, which can fix your drawer tightly. Multi-ridged ring knob, each handle is supplied with a fitting screw. Quick to fit with no hassle, simple and convenient to install, not easy to drop. Black knobs are smooth surfaces, not easy to stain the ash layer, easy to clean. Simple but elegant designs make these knobs a beautiful addition to any home. Suitable for kitchen cabinet, door, drawer, shoe cabinet, chest, bookcase. Material: Aluminum alloy; Color: Black. Shape: Square; Diameter: 30mm/1.2in; Height: 25mm/1in; Screw Length: 22mm/0.87in. Package Includes: 20/10 x Knobs; 20/10 x Screws.