Safe silicone These molds are Great silicone. Smooth interior: The interior of these molds is smooth, so the resin matter is smooth and flat without uneven flaws. Non-stick: non-stick, easy to separate and clean, recyclable. Wide application: This silicone mold is suitable for making ornaments silicone mold, pendants and car air outlet decoration. Great present for men, women teenagers at Christmas, wedding, Halloween, birthday party.