Function: anti-static, shockproof, moistureproof, , wear resnt and anti-slip Made of eco-friendly silicone, won't cause damage to human body and environment Function: anti-static, shockproof, moistureproof, , wear resnt and anti-slip Made of eco-friendly silicone, won't cause damage to human body and environment Made of eco-friendly silicone, won't cause damage to human body and environment