Safe silicone material: These molds are made of high-quality silicone and are non-toxic. Smooth interior: The interior of these molds is smooth, so the resin material is smooth and flat without uneven flaws. Heating: These molds are heatable and can be used in ovens, refrigerators, microwaves, etc. Non-stick: non-stick, easy to separate and clean, recyclable. Wide application: This silicone mold is suitable for making ashtray silicone mold, pendants and decorations. 1x Ashtray Mold-1/ 1x Ashtray Mold-2 Color:Clear Material:Silicone Size:Approx.13x13x3cm/5.11x5.11x1.18in/ 12.8x12.8x3cm/5.04x5.04x1.18in Please allow a little error on the size due to manual measurement. The color might exist slightly difference due to different displays.