These Tatami grip high impact foam 40 mm Jigsaw mats are made from EVA memory foam. The mats are waterproof and easily wipeable. These red/black reversible mats are 1m x 1m x 40mm, they come with edges and tesselate together just like a jigsaw puzzle. Mat sections can be flipped to create colour zones and are easily swapped out or flipped if damaged. These hard wearing mats if cared for correctly will last a lifetime.