- // Features
*Comes with flexible ball inside which makes you easily to do sit up exercise.
*When you lie down on the board, the ball provides cushioning effect.
*It is great for the entire abdominal muscle group.
*Comfortable design contoured to your lower back to provide perfect support and help prevent injury.
*Can take off the ball as a massage ball.
* Produced by Taiwan manufacturer with good quality.
- // Specification
Color: pink, orange, green, or customized color