Made with 100% polyester non-woven fabric compound PUC, heavy duty hearth mat protects fine floors, prevents scorching and burns. Keep your hearth area looking new. NOTE: Keep away from extreme heat or fire, Grill mat can not come into contact with direct flame or heat sources. Multi-layered flame retardant carpet that protects the floor from sparks, ambers, ashes or incandescent material coming from barbecues, heaters or chimneys. Roll up the hearth pad and shake it off in the yard or clean with a damp sponge. It also can be easily washed by hand or in the dishwasher. This non-skid backing keeps the mat in place and prevents it from moving around. The waterproof layer prevents liquid or grease from soaking through to damage the surface below. Designed to shield decks, patios, garage floors and other surfaces from damage caused by drips and spills around your outdoor grill. 4 Size available for you choose to meet your different needs. Size(LxW): Approx. 30’’ x 48’’/36" x 50"/36" x 60"/36" x 72"(Optional)