Remove burrs, rust, dust, remove oxide layer. Coating, can improve the quality of metal stone, economy, high efficiency. For different angles of wood, metal materials, polishing and grinding all kinds of rough surface Suitable for most black and non-ferrous metals, castings, welded joints, rivets, rust-proof, stone, glass Very suitable for all types of fine materials details of the work. Use with most rotating tools For jade, ceramic, glass, wood, hardened steel, cast iron, stainless steel, fine details Color: Silver + Gold Material: Brass + Stainless Steel Pencil wire brush size: 5mm Wheel steel brush: 25mm Cup steel brush: 15mm Package Contents: 12 x gold brass pencil wire brush 12 x silver pencil wire brush 6 x brass wheel steel brush 6 x sliver wheel steel brush 4 x brass cup steel brush 4 x sliver cup steel brush Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.