The SuperMats MuscleMat is a heavy-duty durable 100% rubber flooring system that protects floors and equipment from damage in addition to muffling noise and dampening vibrations. These are perfect for weight lifting or floor exercises. Make sure you get all your core workouts done like deadlifts, bicep curls, or bent-over rows without damaging your flooring. Rubber exercise mats are especially useful in a cement basement or garage!