AB roller wheel  main specifications:

 AB roller wheel main Features:

KINETIC ENGINE Carbon Steel Spring turbo-charges abdominal and arm workouts

ULTRA-WIDE WHEEL Stabilizes movement to carve left, right and center

PERFORMANCE GRIPS Rubberized, non-slip ergonomic grips for stability control

FOAM KNEEPADS ARE NOT INCLUDED

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The Perfect Ab-Carver will carve your core and help you get ripped abs and sculpted arms. The kinetic "engine" uses a carbon steel spring to turbocharge your abdominal and arm workouts. It provides resistance as you roll out and assistance when you roll back. The ultra-wide tread provides maximum stability when carving left, right and center. Ergonomic hand grips are angled to help activate arm and core muscles.

 AB roller whee main photos: