Protection against dust and scratched Slip -resistant surface Suitable silicone shell High wear resistance weatherproof good resistance to oils, fats, fats and many solvents for cable connections and all buttons Outside material: Silicone Color: Yellow protection against dust as well as scratched Slip -precise surface Silge silicone cover High wear resistance weather resistance to good resistance to oil, Fats and many solvents recesses for cable connections and all buttons outer material: silicone color: yellow.