Material: Food/medical grade silicone,Eco-friendly Wear-resistant, acid and alkali resistance, ozone resistance, resistance to high temperature (-50 to 230°C) with nice insulation, long lifespan, no cracking, harmless non-toxic and odorless Weathering resistance, fire protection (being flame-resistant), nontoxic Widely used in all industries The soft degree of hardness and the granularity could be adjusted Various colors are available OEM and ODM orders are welcomed