ice grippersice spiker , magic spiker: 1. material: rubber 2. color: black 3.anti - slip function 4.size: 3size ice shoes cover,ice spiker , magic spiker: 1. material: rubber2. color: black3.anti - slip function4.size: small, middle ,big suite for chrild, women and man5. packing: 1pair 1box6. we do silicone and rubber items , so we accept OEM , such like silicone cup cover, silicone silly band, ...