1. Clean and soak feet to soften hard skin.
2. Gently glide the shaver across hard skin to remove thin, dead layers.
3. To smooth skin using the rasp, simply press the button on the handle and slide the shaver part down into the case.
4. Use your fingernail in the notch on bottom of the handle to help slide the shaver down, thus exposing the rasp.
5. Once tool is locked in place, flip it and use the rasp to smooth skin.

Precautions: Blades are very sharp. Handle with extreme caution and avoid handling blade's razor edges. To prevent cross contamination, do not use same Callus Shaver Blades on more than one individual. Always clean your Callus Shaver after use according to instructions. Replace blades when worn.