Usage Tips:200Pcs 9 Sizes Solid Copper Washers Sump Plug Assorted Washer Kit Plastic Box Features: Top Quality Copper: High durability with a melting point of 1083°C. Excellent Conductivity: Superior electrical and thermal conductivity. Versatile Use: Suitable for sump plugs, water, fuel, and hydraulic fittings. Comprehensive Set: 200 pieces to fit various engine types including automotive, marine, generators, and industrial machinery. Specifications Specification: Name：Purple copper gasket Material: Copper Color: As shown in the picture Size Types: 9 sizes (M5-M14) Quantity: 200 pieces Weight: 170g Sizes: Inner Diameter x Outer Diameter x Depth Package included: 30pcs M5*9*1 30pcs M6*10*1 20pcs M6*12*1 20pcs M8*12*1 20pcs M8*14*1 20pcs M10*14*1 20pcs M12*16*1 20pcs M12*18*1.5 20pcs M14*18*1 Note: 1. Please allow 1-3mm error due to manual measurement. Please make sure you don't mind before ordering. 2. Please allow 1-3g weight error. Please make sure you don't mind before ordering. 3. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!