CAR ROOF PROTECTION: Heavy Duty protective pad layer between car top and roof carrier fits neatly and protects against scratches and gouges during travel. ideal for cargo bags, car top carriers, racks, Xmas trees, surfboards, bikes, etc. ANTI-SLIP: Webbing design provided extra padded grip on both side to prevent slipping. ensure the non-slip mat and the roof carrier or sharp objects in place, even in a high speed. TRIM TO FIT: the universal size 36" x 39" can be cut to fit your car roof or cargo, no matter you have a sedan; SUV, truck, or a larger vehicle. But remember, once you cut, you can't go back. MUTI-PURPOSE MAT: can be used in a truck bed or in any truck or cargo space or on a roof to help prevent load shift. Also great for non-slip carpet or can be used in kitchen to open jar. 100% MONEY-BACK SATISFACTION GUARANTEED: If you have problems, just contact us. And we'll refund every penny you paid (Or replace it for you immediately).