Aba Group Metal File Attachments #240 x25 A set of 25 sanding pads with a grit of 240, which can be easily attached to the base of the file. Aba Group Set of Replacement Attachments for Metal File Crescent - Grit 240, 25 Pieces They do not slip or move, and in addition, they adhere firmly to the base. Grit 240 will be perfect for the natural nail plate that is delicate, brittle, prone to damage and brittle. It can also be used to smooth the surface of the gel mass. Set: 25 pieces The overlays are disposable and should be disposed of after the work is finished. REMARK! Metal file not included. This is just a preview photo of the use of interchangeable overlays! How to use: Tear off the backing paper from the tray and attach it with glue to a dry and clean file handle. After the treatment, peel off and discard the abrasive pad. Remove adhesive residue with acetone-based liquid.