Norsk Shock Absorbent Gym Tiles feature a unique dual layered multi-purpose sport flooring solution. The top wear layer surface is made from durable co-polymer materials creating optimal exercise and fitness performance. The foam core is made from a durable high density co-polymer that provides cushion and support for weights and general exercise. These foam tiles are extremely durable and do not have the offensive odor found with recycled rubber products, and can be installed similar to other puzzle mats or foam floor tiles with a variety of applications.