TO USE YOUR PLATING KIT, YOU WILL ALSO NEED the Common Plating Module which includes: a 10 litre tub, Power Supply, Variable Control Unit, Suspension Rods, Support clips, Crocodile Clips, Dust Mask and Gloves. The cadmium-zinc plating found on washers, racecar components etc is unsafe to do at home. However, our Cadmium-Zinc system gives the same finish and protection, using chemicals, which are not dangerous. Cadmium-Zinc Plating Modules contains 5 litres Cadmium-Zinc salts, 5 litres Post plating Solution, Cadmium-Zinc anodes, 10-litre tank, Scouring Powder, Test Kit and Instructions. Available as 5 or 10 litres.