For Use Under Stabilizing Legs Of Class A Motor Homes Prevents Damage Caused By Sinking Each Pad Measures 15 X 17 X 1, Weighs 6 Pounds And Is Compression Tested To Hold 100,000 Psi Recommended For Coaches With A Gvw Of More Than 20,000 Pounds Easy To Clean And Store Will Not Absorb Grease Or Liquids Use Perforated Side Up 5-Year Manufacturer Warranty