ProSource Abdominal Ab Exercise Mat Core Trainer - High Density

Provides a full range of motion that you can't get from standard sit-ups, and isolates the abs for optimal workouts and results!
Arch design naturally curves to the back, allowing for more effective core work while protecting your lower back and tailbone
Great for those with lower back pain problems who want a safe way to continue strengthening their abdominal muscles.
High density, durable foam gives comfort and the perfect amount of firm support for your back and spine while providing a challenge to your core muscles
Dimensions: 15" x 12" x 2.5"; the compact design is one-size-fits-all and portable so you can carry it to the gym or even while traveling