Phil et Chillé Plastic Coasters Heat resistant - Material: Unsaturated polyester resin (fiber-reinforced plastic) - Heat resistance: 130°C - Size: 10cm diameter #Phil et Chillé #DeuxC #PlasticCoaster #HeatResistant Thank you for viewing. There are 3 designs. A set of 6 coasters, 2 of each design. These have been stored at home for a long time. There are no noticeable scratches or stains, but there is some evidence of use. Please consider purchasing with the above in mind. Also, there is no smoking habit and no pets.