Description Material: fiberglass Thickness: 0.4mm~6mm High temperature resistance range: -50~550 Conventional temperature resistance: -50C-550C 1. Upgrade 3 layers and thicker - The first layer of aluminized fiberglass fabric reflects up to 95% of the fireplace heat. A second layer of insulation helps insulate and slows the spread of heat. The third layer is coated with silica glass fiber, whichimproves the thermal insulation effect and is non-slip. 2. Portable - Charcoal fires can cause irreparable damage to decks and lawns. Flame retardant, heat resistant fire pit mats are ideal for protecting your patio, lawn, composite deck, grass and decorative stone. The lightweight design allows you to convenientlybring the fire pit mat to parties, picnics, camping and barbecues. 3. Fits Most Round Fire Pits - Whether you have a wood fire, charcoal grill, copper bowl fire, portable propane fire or natural gas fire, this fire retardant pad will keep you safe. However, for best results, all four legs of the fire pit should reston the mat. 4. Warm reminder - do not place the heat source directly on the surface of the refractory material, and there should be at least 10 cm distance between the fireproof pad and the heat source. Use a stand if you want to use a fire pit pad without legs underthe fire pit. Please keep the reflective layer (aluminized layer) facing up. 5. Waterproof and Durable - Our fireproof bowl mat is waterproof and can resist rainwater. Meanwhile, you can easily remove grease, mud, and other stains from your fireplace mat with water and a towel. Materials ensure a long life, allowing you to enjoythe warmth and comfort of a fireplace on your deck. Color: silver Size: 14in Quantity delivered: 2 pieces 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding 3. Only the above package contents, excluding other products.