Perfect Size: Black Drawer Knob Diameter: 30mm); Height: 22mm; Base Diameter: 15mm. Screw size 25 mm (1"): for doors 17.5 mm (0.68") to 21 mm (0.83"). Screw size 40 mm (1.57"): for doors 29mm (1.14") to 34mm (1.34") door).Material: The drawer pull handle is made of high-quality zinc alloy. They are strong, strong and durable. Our Guarantee: As long as you are not satisfied with the furniture handle, please let us know for any reason. We will provide you with the best quality solution at the first time. Application: Whether you are adding new appliances to the kitchen, remodeling cabinets, or installing new faucets and showers in the bathroom, adding hardware cabinets that match your home is always the best choice for you. great product. Design: The single-hole round knob design not only makes your installation more convenient and quick, but also has a beautiful, simple and elegant appearance.