exo waterproof abrasive cap is an innovative solution that combines a composite cap with a cosmetic corundum coating. professional exo cap is made with the greatest care and the best available materials. the inner element of the cap is a composite that ensures durability and comfort of work. it is covered with cosmetic corundum not used in any other caps. white color gives the impression of cleanliness and hygiene.  in exo caps you will not notice "falling" of the abrasive! technical data: gradation: 60 - diameter of the cap: 10mm type of abrasive: corundum cosmetic - core: composite hard cap quantity in a package: 10pcs • 60 grit - very coarse - for removing coarse calluses • 80 grit - coarse - for removing calluses • 150 grit - medium grit - for leather sanding • 220 grit - fine grit - for final smoothing of the skin surface