Features: Top quality copper material, melting point up to 1083. Good electrical conductivity and thermal conductivity. 200pcs solid copper sump plug washer set. All contained in a compact and see through compartmented plastic case. Great for sump plugs, water, fuel and hydraulic fittings. A sump plug washer set to suit all types of engines be it Car, Marine, Generators, Machinery and Plant. Specification: Brand new Material: copper Color: as picture shows Box size: 130x68x22mm Size types: 9 (M5-M14) Quantity: 200pcs Size: (I/D x O/D x Depth) M5*9*1 30pcs M6*10*1 30pcs 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 20pcs Package included: 200 x copper washers 1pc x case Note: Please allow 1-2mm errors due to manual measurement Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same