Easy to use, easy to clean, dishwasher safe. – This silicone meld is safe up to 230 degrees celsius 440 degrees fahrenheit can be reused, innovative design, soft, varied styles and easy to clean. – Silicone is extremely stable properties, uv, ozone, extreme temperatures, and the vast majority of chemical agents can not change its character. – The melds are durable and everlasting, you can reuse them as long as you would like to and goods pop out easily – more choice to use making bath bom balls, plaster ornament, crayon.