E Lite is made from plastic (polypropylene), resulting in a pad that is lightweight and durable;Engineered with uniform and generous ribbing for level loading, optimum strength and selfleveling ground support;Unaffected by UV exposure or extreme weather;Environmentally friendly, made from 98% recycled plastic;A subtle texture on pad surface prevents unit slide;Each pad is constructed with its size in raised letters on the side of the pad for easy identification;Tested per ASTM D2299 with refrigerants, synthetic canine urine, compressor oil or salt solution;Drillable making it easy to secure equipment to the pad if necessary;Made in the USA