Instead of pulling the hair from the root, it simply cuts it sometimes. I bought it for the other two heads it has, but in the end, none of them is worth it. The shaver has a very small surface area with little hair growth, and the head for calluses is useless to me. As soon as you apply a little more pressure, it stops rotating. I have little hair growth and it didn't help me in any case. Every four days, it needs to be used again, just like a razor. It would have been better if I had spent the same amount of money and bought a Philips.