BenderBall.com sells a ball that promises to help shape abdominal muscles
Title
Bender Ball :: Official Website
Description
Excerpted from the website:
- What you're seeing in the gym are people doing a gazillion crunches and they don’t know why they’re not getting results. With a regular crunch on the floor, you’re limited. You can only go forward, you can’t go back. With the Bender Ball, you’re getting extension back and flexion forward, which works your muscles more effectively.
