JOKBEN Copper Grill Mat, 5-Pack Heavy Duty Magic BBQ Grill Mats Non Stick, Reusable, and Easy to Clean Barbecue Grilling Accessories for Gas, Electric, and Charcoal Grilling (Grill Mats)SAFE & HEALTH These grill toppers are made from premium heat resistant PTFE Fiberglass coating and contain no PFOA, silicone, or other harmful chemicals. They can withstand temperatures up to 500 degrees Fahrenheit and will not burn. Keep your family safe with a brand you can trust. HEAVY DUTY 500 Our copper grilling mats of 0. 25mm thickcess which is 40% thicker than standard models, with up to 500 heat resistance and made with durable layers of PTFE