This cross link Ultimat B features a 19 pound, lightweight construction upholstered with a tough 18 ounce vinyl fabric. This mat's 2 feet panels fold into 2 feet section for easy transport and storage. Ultimat 2 ft. panel no fasteners. Ideal for older and heavier students physical education classes, cheerleading, gymnastics, martial arts training. Sturdy support for high impact activities is delivered by 1.38 in. mats absorb shock. Ultimat designs avoid the "bottoming out" characteristics found in lower-quality mats. Panels fold in 2 ft. sections for hassle-free handling and storage. Covered in tough 18 oz. vinyl fabric that delivers excellent tensile strength to resist abrasions, tears and punctures. Mat is resistant to fungus, bacteria and mildew, to help student athletes stay healthier as they enjoy years of use. Mats provide the firm support necessary for high impact activities by older and heavier users. Knife coated on both sides, the polyester base fabric provides excellent tensile strength resists abrasions, tears and punctures. Warranty: Five years.