Reduce stubborn calluses, then softly and evenly smooth skin with Tweezerman's pedicure duo's finely textured rasp.Tips & TricksClean and soak feet to prep and help soften hard skin. Repeatedly glide shaver gently across the corn or callus to remove thin layers of hard, dead skin. After removing calluses, snap rasp onto head of shaver and work back and forth over callused area to smooth skin.