You should purchase the right type of callus scraper according to your needs. For instance, if you have a large amount of callus under your feet, then you might want to have a full sized callus scraper.
In the meantime, if you find calluses developing under your feet on regular basis, along with corns, then you should opt for a small and compact scraper. You can use the small scraper on regular basis, whenever you see a damaged skin under your feet. It will allow you to keep your skin soft and healthy.
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Also, you should purchase a callus scraper that comes with an option to change the blades. Moreover, the blades should also be readily available in the market. Otherwise, you will not have any benefits of the replacement option on the scraper. If you are among the women who use the callus scraper on daily basis, then you will certainly have to change the blades after around every month.
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You can also check if the callus scraper has the option to catch the trimmed skin. Some scrapers save the trimmed skin in a box attached to them. You can just use the scraper and open it later to throw the damaged skin in the bin.
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You can also look for other features that come along with callus scrapers. For instance, you can check if the handle of the scraper is easy to grip and you can comfortably reach the bottom of your feet. Moreover, you can also check if it comes with a box that can store the replacement blades.