The ab mat is a great addition to any core workout routine. The gentle sloped surface offers many technical benefits. It will give a greater range of motion during crunches and sit ups, allowing for more effective targeting the entire abdominal muscle group. Ergonomically designed to make your core exercises more comfortable and more efficient. It is made from black artificial leather meaning it is waterproof and durable. Suitable for use on any kind of surface in a gym or at home.