Safely smooth & soften rough skin on your feet knees & elbows with the Jessica Professional Ceramic Pumice Stone File an easy-hold ergonomically designed ceramic foot file. Durably constructed the Jessica Professional Ceramic Pumice Stone File features a two sided filing so you can file coarse & fine. With its technologically advanced hygienic filing surface it can be used over & over again. Directions of use: Use on softened wet skin after or during bathing or gently on dry skin.