Description: PROVIDES SUPPORT: Exercise mat is comfortable, and the arch design naturally curves to the back, allowing for more effectiveness while protecting your lower back and tailbone, providing stability, and constant tensionPREMIUM WORKOUT EQUIPMENT: Great for those with lower back pain problems who want a safe way to continue strengthening their abdominal muscles. The Abdominal Mat will not hurt your lower back making this your most effectiveQUALITY MATERIAL: The Ab exercise mat is made of PVC leather, EPE, compact, comfortable, and sturdy for long term service. The foldable design is easy to store, and you can easily take it anywhereWIDE APPLICATION: This sit up great support for training abdominal, back, and oblique muscle groups during crunches, leg lifts & sit ups and provides stability & constant tensionPROVIDES FULL RANGE EXERCISE: The great amount of firm support for your back and spine while providing a challenge to your core muscles Specification: Material: PVC EPE Foam Size Chart: 36cmx30cmx9cm/14.17inchx11.81inchx3.54inch Package Includes: 1 Abdominal Exercise Mat Note: 1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful online shopping!