[Great Customer Service]: If there is any quality problem, please let us know, we can assist you in the best possible way until you aresatisfied, we also can provide 30days to return and 100% refund!. [Kit Packaging Sanding Bands Nail]: You will receive 300 pieces nail sanding bands and 2 pieces 3/32 inch nail drill bits, including 60pcs 80 grit coarse, 60pcs 120 grit medium, 60pcs 150 grit medium, 60pcs 180 grit fine and 60pcs 240 grit extreme fine. [Clean Nail Sanding Bands]: Each sanding bands was cleaned, no residual glue or other debris from the production. The storage box was cleaned, put into bags. Don’t worry about unclean products or packaging being sent to you. [Five Types Of Sanding Bands For Nail Drill]: #80#120#150 are coarse and rough grit, commonly used for shortening, polishing and shaping acrylic nails, hard gel nails or thick cuticle. 180 grit and 240 grit are fine, commonly used for shortening, polishing natural nails, or thin cuticle. [Five Types Of Sanding Bands For Nail Drill]: #80#120#150 are coarse and rough grit, commonly used for shortening, polishing and shaping acrylic nails, hard gel nails or thick cuticle. 180 grit and 240 grit are fine, commonly used for shortening, polishing natural nails, or thin cuticle.