SPECIFICATIONS Number of Pieces: COMBOMaterial: STAINLESS STEEL  Description:Nail product category: Nail tools Material: tungsten steel Color: solid color Features: 100% new products and high quality products. These products are made of tungsten alloy, which is very strong and will not rust. It fits tools, pens, nails, etc. It can be used to remove dead skin, polish armor, strip armor, and more. 6/7 different sizes and bits, which is exactly what you want. Grinding head * 1 set