Deck Protector: Eliminates the risk of burns and fire on deck, deck or grass. Protect the patio surface from burns, heat damage, thermal warping, grease splatters, cement stains, etc. Fits most square fire pits: 39*47 inches, suitable for most square fireplaces and barbecues. The barbecue mat is easy to cut, simply measure your shelf and cut it. Can be customized. Anti-slip and waterproof backing: Our barbecue mat helps firmly fix the oil pad in place and prevent it from shifting. The impermeable layer can block engine oil, gasoline, coolant or gearbox oil and prevent these liquids from entering, damaging or contaminating the surface by underneath. Easy to clean and easy to transport: When preparing to clean, simply rinse with soap and water or a garden hose; it can be folded and carried and can be well organized in a bag. Heating reminder: do not put the heat source directly on the fire pad, the distance between the fire and the heat source should be at least 4 inches.