Basically, a scraper has a surface with micro-files you rub over your callus until it is removed. Then, it the scraper has an abrasive or finishing surface, you would use that to smooth it out. |
A good quality scraper will capture all the skin you scrape off. The most popular one is the Ped Egg. Based on reviews, it works great. Most people were surprised by their results. For less than $10, it is not very expensive for the benefit of smooth feet.