What it is: An ergonomic and durable tool that effectively removes calluses and beautifully smoothes feet.What it does: It features a ceramic stone and plastic handle infused with silver for enhanced hygiene. It's fully waterproof for use in the tub or shower, and it keeps feet looking great and feeling super silky all year long. How to use: Soak feet to prep and help soften hard skin. While skin is still soft and damp, use the coarse side to exfoliate especially rough or callused spots. Use the opposite side to smooth the bottom of your feet and around the toes. It's not suitable for use by diabetics, hemophiliacs or those with circulatory problems. Made in Germany