Higher flexibility, lower distortion, good stability, small shrink, various colors, shapes and gradients mats flooring - Exercise rooms- Yoga- Gym- Martial Arts- Workout rooms- Play rooms High Quality Interlocking Foam Mats covering 16 sq. ft. per set. Tested for heavy usage, these are lightweight and extremely durable. Do not confuse these mats with those paper thin flimsy children toy mats that ...