Turf Athletic Padded Floor Roll has a 3mm nylon turf layer with a 12mm rubber backing. The turf floor is used for conditioning drills. This fitness room also installed 4x6 Foot Eco Rubber Mats for equipment and weightlifting areas. https://www.greatmats.com/padded-turf/indoor-padded-turf-athletic-flooring-roll-15.php https://www.greatmats.com/rubber-floor-mats/rubber-mats-4x6ft-34-natural.php