Rolling Ab Exerciser with Smartphone Dock
With its advanced 360° movements and smartphone directed workouts, the Rolling Ab Exerciser with Smartphone Dock is the world’s most complete ab exerciser ever invented. Ordinary ab rollers have two directions – forward and backward. By replacing the roller with a nylon resin rollerball and 460 ball bearings, you get 360° movement and unlimited ways to focus on your core and upper body muscle groups–especially your 6 major abdominal muscles.
