Description: FDA food grade silicone;microwave, freezer and dishwasher safe and heat resistant to 230?( Temperature range: from -40? to 230? (-40? to 446?) Flexible mold,it was easy to wash and easy to store Nice and interesting shape,versatile function muffin cups can be used for cupcakes, chocolate coffee smoothies,pot pie cups and so much more Material:Silicone Diameter: Approx.8.7cm/3.39inch Thickness: Approx.1cm/0.39inch Package Includes: 1 Piece Silicone Mould