CBB11|Champion 9Pc Copper/Alum. Sump Plug Washer Assortment Description Copper Sizes: 12mm x 18mm x 1.5mm 14mm x 20mm x 1.5mm 16mm x 22mm x 1.5mm 18mm x 24mm x 1.5mm 20mmx 26mm x 1.5mm Aluminium Sizes: 12mm x 18mm x 1.5mm 14mm x 20mm x 1.5mm 18mm x 24mm x 1.5mm 24mm x 30mm x 1.8mm Pack Size: 9