Martial arts mats: 1 100cm*100cm*4cm 2 Non-toxic,high elasticity 3 good elasticity 4 bright-colour Taekwondo mat/puzzle mat/martial arts mat ... :40mm thick jigsaw are great for any martial art, 1mx1m in size ... Diamond pattern. Puzzle System Floor. Reversible. Density: 115 kg/m3. Weight: 2, 6 kg por pieza. Recommended for martial arts: Taekwondo, ...