Upgrade 3mm Nail Sanding Bands: Come With 80pcs #240 grits mini sanding bands which work perfectly with the included 3.1mm small mandrel nail bit. Give you a comfortable and safe nail experience when nail tip extension preparation, cuticle cleaning, and natural nail polishing and smoothing. Special Small Sanding Bit Set: They are perfect for smaller nail plates and provide optimal finesse when preparing the underside of gel nail tip extensions or working on petite nails. Easy to control during cleaning dead skin of the nail side wall and no harm to the skin around the nail bed. Various Grit Options: #80 coarse grit removes the nail gel or shortens the acrylic or artificial nails easily. 180# medium grit helps to prep the nail quickly, file the nail sidewalk, shape, and smooth. 240# fine grit perfect on the natural nail polishing and cuticle cleaning with your efile's low speed. High-Quality Material: These sanding bands set for nail drills are made of upgraded 1.5mm thicker sandpaper, the nail sanding bands are harder, more durable, and not easy to deform and damage. Multiple colors(Black/ White/ Pink/ Brown/ Dark Pink) of these safety nail drill sanding bits meet all your needs. Wide Application: nail file drill bits set is appropriate for nail salons, beauty shops, spas, or DIY home nail art, manicures, and pedicures, helpful tool for any manicurist or a beginner. Also the best present for ladies, allowing them to save lots of time and money on manicures.