1. PREMIUMTRAINING EQUIPMENT: Ideal for people with back problems who want to ly strengthen their abdominal muscles. The abdominal mat protects the lower back and helps with effective abdominal muscle training. 2. QUALITY MATERIAL: The abdominal muscle training mat made of PVC, EPE, is compact, comfortable and suitable for longterm use. It has a foldable design, easy to store and can be taken anywhere without issues. 3. PROVIDES FULL RANGE OF MOTION: Offers comfort and substantial firm support for your back and spine while challenging your core muscles. 4. Provides lumbar support: This seat cushion has a comfortable and curved design that arches backward naturally, enabling more effective core training while protecting your lower back and tailbone and providing stability and constant tension.