Description: Made of high-quality flame retardant material. Composed of single layer fiberglass silicon and a layer of fire-resistant film for Fireproof Hearth Rugs They can be used to put out small fires without the mess of ordinary fire extinguishers. A fireplace Mat can instantly stop a liquid or grease fire by cutting off the oxygen supply to the fire Properties: size: 39*47inch 374g 39*60inch 428g Material: Single-layer glass fiber silicon fireproof material + non-slip material Product List: Fireplace Mat*1