Description: 100% brand new and high quality. Top quality copper material, melting point up to 1083 Good electrical conductivity and thermal conductivity 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 Specifications: Material: copper Color: as shown Size:200pcs(included 9 types): #1 : 9mm*1mm (30pcs) #2 : 10mm*1mm (30pcs) #3 : 12mm*1mm (20pcs) #4 M8: 12mm*1mm (20pc