... 100% pure silicone 2.Color/size any is available 3.Certificate SGS FDA LFGB flexible silicone hose Features for silicone ... 1). No taste, no toxicity, no contamination (environmental friendly)(2). Resistant to high temperature, aging, radiation, cold, heat,Acid ... laboratory etcAny questions,please feel free to contact with me. flexible silicone hose with FDA,LFGB ROHS CERTIFICATE for industrial/medical