1. No tar or other carcinogenic substances. 2. Harmless to others or the environment. 3. No danger of second-hand smoking. 4. Can smoke in a public place
1.100% food grade silicone with FDA & LFGB approved.2. Eco-Friendly, Softness, Non-stick finish 3.Durable, long-standing, long life time 4.Temperature: -40~230 centigrade