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It's a pumice stone! Use it in the shower to remove hard, rough skin from the soles of your feet, leaving them soft and smooth.
All you do is get it wet and vigorously scrub it on your heels and toes. If you use it daily, it can help get rid of dry and cracked skin and get your feet flip-flop ready.
Fit's Tips: This pumice stone is from The Body Shop ($5.00) and I love it is because it's got a hemp rope attached. You can hang it in your shower so it dries out completely between use. This way the stone will stay mildew free and last forever!