This tool saved me from a lot of pain. I am 69 and have been getting these painful calluses lately. Bought this tool and was able to remove them in five minutes, no pain at all. It is worth the money plus it was delivered to me really fast. I was going to have to wait a whole month in pain until my next podiatrist appointment. Not any more! It comes with 10 blades which is much better than what they sell at pharmacies for less