Kneeling mat made of resilient cellular rubber NBR 1 inch foam rubber with built-in handle. Self extinguishing and non-conductive. Does not compress set and absorb liquids. Helps to reduce knee trauma and low back pain. Provides comfortable support and cushioning. Designed for severe kneeling conditions in cold/hard, steel, concrete, grating, gravel, wet surfaces, dirt and mud. Impervious to petroleum products. It is silicone-free and fully washable.