Our Fire Pit Mat Two Layers Of Protection With Aluminum Foil And Glass Fiber The fire retardant article inside which reflects up to 96% of radiant heat up and away from the base 4inch. Whether your surface is wood, composite, stone, Will protect your patio surface from burns, heat damage, heat deformation, grease spills, cement stains and more! Whether it's your patio, deck, poolside or lawn Always be safe to protect yourself, your family and your neighbors and protect environment. It can be roll into small size to make it easy to storage and transport.Perfectly suited for regular everyday use throughout the seasons. Please do not use directly under the fire pit.DO NOT place heat source directly on Pad..syi