GoFit"s Ribbed Exercise Mat is perfect for low impact exercise workouts that include floor exercises such as sit-ups, crunches, leg lifts or any exercise or floor routines in which you may be on your knees or back. The Ribbed Exercise Mat rolls for easy storage and the convenient carry handle makes the mat extremely easy to take anywhere. The mat has a black quilted fabric surface and is machine washable. Also perfect for core training exercises, the mat measures 24 inches wide by 48 inches long.