?Perfect Service?We promises to provide the best service for our customers. If you have any dissatisfaction or questions, we will give you a full refund or send a new product. ?How To Use?First #80 for removing the gel or nail polish, file the nail. Then #180 for removing the cuticle on natural nail. Finally #240 to smooth and polish the nail surface to shine. ?Multi Functions Sanding Bands ?It can used for grinding, smoothening, shaping, shortening and polishing for all nail arts as well as cuticle removal. Ideal for both home and salon use. ?Superior Material?these nail art sanding bands in 4 colors are made of quality sand band with high hardness, durable and won't fall apart; the grinding head bits are made of quality stainless steel material, with good durability, the handles of grinding head bits are constructed with solid metal material, stable and easy to insert into the bits and stay steadily. ?Sanding Bands Set?Our nail drill set includes: 100 PCS coarse grit 80 in red; 100 PCS medium grit 180 in black; 100 PCS fine grit 240 in blue. and 2 PCS 3/32 inch mandrel drill bit what is suitable for almost standard size nail drill.