Silicone Polishing Wheel Kit is made in Germany, contains 24 Pieces, wheels, and Knife shapes in various thicknesses and diameters, and contains 4 mandrels. These silicone polishers are primarily used in Jewelry Making and Creative Arts. Silicone polishers are also used by Metal-smiths, in the Gun-Knife Smithing, Clock& Watch repair, and instrument cleaning industries. Kit includes an assortment of Silicone Wheels along with the necessary mandrels for use.