Size & Packaging: Outside Diameter: 39mm / 1.54inch, Height: 8mm / 0.31inch, Hole Diameter: 6mm / 0.24inch, Thickness: 1mm / 0.04inch. Package Included: 2Pcs x Brass Backplate Washers. Wide Application: Suitable for scenes that require buffering or decoration, cabinet knob backplate is very suitable for furniture projects, wooden tables, cabinets, drawers, wardrobes, closets, cupboards, architectural restoration, interior design, etc Easy to Install: No additional tools are required. Simply place the brass backplate washer under the handle and align it with the screw hole for quick installation. It can hide the screw hole and enhance the beauty of furniture, cabinet doors and drawers. Note: Can be maintained by quickly wiping with a cloth with soapy water or alcohol; if you want to remove some rust and make it brighter, use a thin layer of commercial brass polish. (Apply brass polish with a rag and let it dry for several hours before polishing to prevent over-polishing) Vintage Durable Design: Made of brass, these washers are rust-resistant, corrosion-resistant, durable, and long-lasting. The smooth edges and vintage brass color add a touch of sophistication and elegance to any furniture or architectural project.