[MATERIAL]: The fire pit mat is made of 2 layers of composite heat-resistant fabric. The silver layer of aluminized fiberglass fabric can reflect up to 95% of the heat from the patio fire and has good thermal insulation and fire resistance, flame retardancy, water resistance, and good adhesion. [PROTECT PATIO & OUTDOOR AREAS]: The fire pit mat is a round mat with an opening diameter of 36'', suitable for most stoves for families or friend gatherings, including round smokers, perfect for protecting the ground under the stove. [WATERPROOF & PORTABLE]: With the aluminized fiberglass layer and the silicone-coated fiberglass layer, our fireproof patio mat is also waterproof, allowing you to easily clean it after use. At the same time, the premium fireproof fiberglass layers and fireproof mat seams make our fire pit mat for the patio durable and usable for several years. The portable and lightweight design allows you to easily take the fire pit mat to parties, picnics, camping, barbecues, or anywhere. [FIRE PIT MAT FOR WOODEN DECK]: Protect your wooden deck, garden, patio, lawn, wood, planks, cement, floor tiles, camp, and outdoor areas. When using the stove, place the fire pit mat under your tools for maximum protection against falling fire. [OPERATING INSTRUCTIONS]: Make sure there is at least a 4-inch gap between the heat source (propane fire pit, bonfire, burn barrel, vertical smoker, grill, pit barrel smoker, etc.) and the fire pit mat, do not place the heat source directly on the fire mat.