Product Information : Tweezerman Safety Slide Callus Shaver/Rasp
Manufacturer's product description
Perfect 2-in-1 combination tool for removing calluses and smoothing skin. The unique slide and lock" mechanism lets you safely conceal the shaver portion of the tool when not in use. Great for home and travel.How to use:Clean and soak feet to prep and help soften hard skin. Gently glide shaver across hard skin to remove thin, dead layers. To smooth skin using rasp, simply press button on handle and slide shaver down into case. Use your fingernail in notch on bottom of handle to help slide shaver down, thus exposing the rasp. Once tool is locked in place, flip it and use rasp to smooth skin."