Made of closed-cell High quality EVA (ethylene vinyl acetate) foam materials, will not absorb water and odors. Non-toxic. Non-odor
The mats have enough and appropriate density for turning the base foot for kicks and enough give for throws and falls. Safe and soft, providing extra comfort cushion and anti-fatigue shock absorbing. Great for basement floor, schoolroom of karate, Judo arenas, tae kwon do, Gymnastics Common use over subfloors, carpet, concrete, linoleum and so on. This is the most popular flooring system and you best choice.