Six Pack Wonder Core Ab Exerciser For Upper Body

Get into your best shape ever Goes beyond 180° to target your entire core Dual resistance design Variable adjustable resistance Twist seat for dynamic workout Suitable for all Ages and fitness levels University proven With the Wondercore revolutionary Dual-resistance design, your muscles are firing throughout the entire range of motion, on the way down as well as on the way up! You re doing a reverse crunch against resistance as you lie back and a regular crunch as you come up. And unlike Ab machines in the gym that work through a limited range of motion, Wondercore can go beyond 180 degrees with an extended range of motion to target your core like never before! With its adjustable resistance anyone can do it! Its unique ergonomic design focuses the resistance on your upper,