• Interlocking EVA Puzzle Mat, 20 mm, 25 mm & 30 mm thick offers more impact absorption than Standard Foam Mats, plus they are two-sided, so you can flip your entire mat over at some point to expose the "new" bottom surface.                                                  • These mats are embossed with our new non-slip basket-weave texture on both sides.                             • Suitable for Martial arts and any strenuous activity like Aerobics, Yoga, Taekwondo, Wrestling, Judo and many more.                                                     • These mats may be used anywhere indoors, and can be used outdoors in shaded or partly sunny areas on a solid subsurface.