Nothing hurts more than working out on a hard surface. The 4' x 6' x 1.25" Vinyl Mats are perfect for crunches, sit-ups, tumbling and many more exercises. They are designed to help pad the floor and help absorb light impacts. The 4' x 6' Vinyl Mat's are also designed to not restrict your movements, yet still provide you safety while exercising. The surface is a vinyl wrap and is easy to clean.