ProSource ab mat is specifically designed to give you the ultimate and most effective abdominal workout. You will be able to target and isolate upper abs, lower abs, obliques, and even the lower back muscles. One size fits all. No matter if you are a beginner or pro, you can use ProSource Ab Mat. Lightweight, just over one pound, makes it easy to store or travel with. Perfect for Home, Office, Gym, Crossfit, MMA, Boxing, and for other types of training that requires a stronger abdominal core.