Only PediFix Toe Separators feature 3 layers of our unique materials -- outer layers of soft PolyFoam, and a middle layer of more sturdy PediSmartª Foam make these soft, yet durable; comfortable, yet firm enough to keep problem toes apart. Gently divide crooked or overlapping toes to relieve between-toe corns, blisters, pinching, and cramping. Soothe and prevent irritations by absorbing pressure. Make shoes comfortable. Washable, reusable and effective for months. Mix contains 2 small, 2 medium, 2 large