1 ) 100% silicone mold raw food grade silicone , pass FDA / LFGB standard ; 2 ) non-stick , stripping easy , easy to clean , environmentally friendly, low-carbon , can be recycled ; 3 ) Simple and practical , health , natural antibacterial, softness high strength , corrosion resistance and adaptability ; 4 ) easy to damage , cracking , durable , superior resistance to extreme temperatures , high temperature 230 degrees, the low temperature of minus 40 degrees ; 5 ) safe , non-toxic , odorless , heat evenly.