These manicure tungsten steel grinding heads in different design, you can choose different size according to your different needs, such as reshape, polish, grind, sharpen, carve and neaten the gel nails or acrylic nails, easily meet your different needs. Features -Color: As shown. -Material: Tungsten steel -Size: 6.80X3.30X3.30cm/2.67X1.30X1.30in -Made of quality tungsten steel materials, these grinding heads are safe and durable for long time of use. -Our professional nail art polishing heads are strong and sturdy, hard to break and deform. -With high strength, good durability and cutting performance, they can quickly and easily polish nails. -These tools are designed to provide you with a pleasant nail doing experience, saving your time and efforts. -You can give them as a your girlfriends, lover or female friends who always get their nails done. Package list: 7 x Nail Drill Bit Tools