The Fengea Mini Sanding Bands for Nail Drill come with 100 Pcs of 240 grit mini sanding bands and 2Pcs small stainless steel mandrel bits, providing a comfortable and precise manicure experience when removing gel nails, shaping acrylic nails, and smoothing surfaces. These bands are ideal for smaller nail plates, giving you optimal finesse when preparing the underside of gel extensions or working on small nails. The 3mm mandrel drill bit fits most 3/32"" nail drills and is perfect for attaching and securing the sanding bands. Simply apply gentle pressure to the nail surface for a smooth finish during manicures and pedicures. The set is easy to use and convenient for storing, as it comes in a dustproof and waterproof storage case for portability and hygiene.