Quantity and Size: Furniture knobs set of 12 black furniture knobs. Each knob measures 30mm in width x 23mm in height, which is the most commonly used size for furniture cabinets. The set includes 12 screws, each with a length of 20mm. High-Quality Drawer Knobs: Our cabinet knobs are made of high-quality zinc alloy and iron. The surface undergoes an electroplated oxidation treatment, making them resistant to fading, wear, rust, and corrosion. They are well-crafted, high-quality, and durable. Perfect Decoration: The vintage furniture knobs have a smooth surface without sharp edges, making them very safe, delicate, and practical. The cabinet knobs feature a classic black design, simple and versatile, suitable for any furniture style and color. The round black kitchen handles are timeless and never go out of fashion, making them ideal for home decor. Wide Application: The round, simple design of the handles makes them suitable for almost all furniture. Ideal for use as cabinet knobs, dresser knobs, furniture handles, bookshelf knobs, wardrobe handles, and more. Upgrade your kitchen, bathroom, or living room furniture with ease. Installation Recommendation: Our kitchen cabinet handles are well-made and suitable for standard-thickness drawers and cabinet doors. We recommend installing the cabinet knobs on surfaces with a thickness between 5mm (0.19 inches) and 20mm (0.78 inches). Simply drill a hole and screw them in.