Thank you for viewing. This is a heat-resistant silicone-coated mat, perfect for IH cooking appliances. It's approximately 21cm in size and can withstand temperatures up to 360°C. - Type: IH Mat - Size: Approximately 21cm - Material: Silicone-coated - Heat Resistance: 360°C - Quantity: 12 pieces Although unused, there may be some creasing on the packaging from storage. Thank you for your understanding. Thank you very much.