They are premium and durable polishing wheels, with durable quality to meet your needs. Use with straight grinders, electric drills and pneumatic drills, etc. Easy to install and operate. Made of wool and iron material, each polishing wheel is equipped with handle. Features - ColorBeige - Material: Wool, iron. - Size: 5.00X1.20X1.20cm/ 1.97X0.47X0.47inch. - Specification: 4mm, 5mm, 6mm, 8mm, 10mm, 12mm - The polishing wheels will give your jade or wood a beautiful shine and smooth surface. - Manufactured with , durable and practical for a long term use. - Suitable for most drill bit polishing metal and non- , such as manifolds, aluminum, stainless steel, glass, jewelry products, etc. - The polishing pads will give your faded wheels a beautiful shine. - More versatile than flat polishing wheels, suitable for certain areas that are difficult to polish. Package list: 4 x cylinder polishing wheels(3mmx4mm) 3 x cylinder polishing wheels(3mmx5mm) 3 x cylinder polishing wheels(3mmx6mm) 3 x cylinder polishing wheels(3mmx8mm) 3 x cylinder polishing wheels(3mmx10mm) 3 x cylinder polishing wheels(3mmx12mm) 4 x cone polishing wheels(3mmx4mm) 3 x cone polishing wheels(3mmx5mm) 3 x cone polishing wheels(3mmx6mm) 3 x cone polishing wheels(3mmx8mm) 3 x cone polishing wheels(3mmx10mm) 3 x cone polishing wheels(3mmx12mm)