1:Silicone tube is environmental protection 2:They are inspected by SGS rigorous testing, RoHs,FDA 3:We can make any size Silicone solid cord is environmental protection.They are inspected by SGS rigorous testing, RoHs, PAHs,eight heavy metals and other standards.Silicone products is 100% non-toxic,harmlessness,tasteless, cold-resistant,temperature-resistant and aging-resistance,oil resistant. ...