Product description Size: 20.0 * 15.0 * 5.0 cm Specifications: A package, B package Material: Stainless steel Package contents: 1 piece set (30 pcs) 1.[Tungsten Carbide Material] sets are made of tungsten carbide metal and works well in carving, cleaning, sanding, sanding, polishing, etc. suitable for natural nails and almost all gel nails. 2.[2.35mm shaft diameter] Fits most rechargeable or electric manicure nail drills. Professional Finger Toe Nail Care Electric Nail Drill Machine Manicure Pedicure Kit Electric Nail Art . 3. [30 pcs different nail drills to choose from] Various shapes and sizes are good for removing cuticles, polishing acrylic nails, smoothing, shaping and cleaning. 4.[Easy to use]Set is suitable for nail salons, beauty salons, spa or home manicure pedicure, professional manicure for beginners. 5.[Wide Use]The nail drill bits have optimal strength, sharpness and durability. and no clogging for nails. Nail Brush Bit can easily clean dust on the bits or nails, protect the bits after each use.