The OPI Foot File features a fully disinfectable paddle and handle. The paddle offers a large professional working surface that allows you to cover more area to work faster with less effort. The easy-grip handle is contoured for comfort and locks easily into place. And the surface is recessed for edgeless performance. Now with OPI Grip Strips, the OPI Foot File gets you one step closer to the cleanest, most sanitary pedicure services! Economicall Pedicure Grit Strips are easily applied and removed Coarse 8-Grit Strip quickly reduces calluses Medium 120-Grit Strip buffs skin to a perfectly smooth finish Available in 20 count replacement packs Fully disinfectable Larger working surface than any other professional file for faster callus removal Recessed surface for edgeless performance Contoured, easy-grip handle Handle snaps and locks easily in place into either end of paddle.