[Great Customer Service]: If there is any quality problem, please let us know, we can assist you in the best possible way until you are satisfied, we also can provide 30days to return and 100% refund!. [Kit Packaging Sanding Bands Nail]: You will receive 100 pieces 240 grit extreme fine sanding bands nail drill and 1 pieces 3/32 inch silver nail bit for professional studio use or home use, perfect for manicures and pedicures. [Clean Nail Sanding Bands]: Each sanding bands was cleaned, no residual glue or other debris from the production. The storage box was cleaned and packaged. Don’t worry about unclean products or packaging being sent to you. [Premium Nail Drill Sanding Bands]: The sanding bands for nail are made of high hardness, durable material, they don’t soften fast and can be used for a long time. The zebra sanding bands for nail drill don’t dull over a long period of time. The seams are connected well enough that they will not come off. [240 Grit Sanding Bands For Nail Drill]:The 240 grit is a very fine gravel, commonly apply to smoothing, polishing and shortening natural nails, removing thin cuticles and shaping meticulous polishing. The grit 240 grit sanding bands nail are extra fine sanding bands which less harmful to Polishing of nails or removal of imperfection for “gentle” polishing.