Allforhome(TM) Round Honeycomb Silicone Heat resistant Coasters Tableware Insulation Pad Potholders Insulation Mat Green Food Grade Silicone; Select more from "www.amazon.com/shops/allforhome"; Quality Guarantee; Every order package with Chinese traditional Handicraft as Free Gift. Heat Resistant Temperature -40 to +230 Centigrade (-40 to 446 F) Dimensions(cm): 18*18 cm(7.1*7.1inches); Thickness 0.8 cm(0.3 inches) Color: Green Non-toxic and environmentally friendly, Suitable for: oven, microwave, refrigerator, etc.