I love the effectiveness of Dr Scholl’s foot scraper because it’s the perfect size and removes my stubborn calluses. This, combined with Kerasol or some type of foot bath first, then soaking and using a foot brush and a scrub and immediately drying the feet, taking them out and using this device for a scrub over the calluses (not too hard on the side of big toe or you could possibly hit your skin and not know it because it glides with such smoothness!) I like the sleek look and blue inside and the quality is great! The mini crystals are designed to be effective in sloughing off dead skin in a mechanical manner. Then, rinse the feet one more time under the tub or a warm wash cloth! Then, add a product like Kerasol or if Vegan get a vegan food callus remover treatment and apply before adding cotton breathable socks. If you have sleeping socks all the better or Saran wrap NEVER too tight but loose around socks or bootie spa socks! Trust me you’ll go from rough feet to having baby soft feet in 24 hours! I use the Kerasol with this foot scraper first and my feet have never been the same!