Features: Washable,Soft Medical Silicone, Non-Toxic Bottom Designed With Anti Slip Granules 12 Holes Design, More Breathable Prevent Dry Skin Protect Skin Against Cracking Medical Grade Silicone Purpose: Help Prevent Dry Skin Protect The Skin Against Peeling And Cracking Instruction: Reusable: Hand Wash With Warm Water And Soap, Then Air Dry Why Footfultm Professional Footful Team Is Multinational, Bringing Together Expertise In Design, Manufacture And Application Of Foot Care Products. 1.Moisturze the skin,keeping skin moisture,healing the ols cleft. 2.Deep penetration of moisture,promote epidermal renewal 3.Aging of the skin gradually thinning 4.Soft & Flexible,able to absorb the impact of walking,relieve pain friction 5.Heel anti crack set (anti chapped, dry , rough, horny thick, crust)