IT'S ALL IN THE WRIST!
Light weight with structural integrity; grip adjusts to any hand length for optimum performance; tension adjuster, thick comfortable foam support pad; engineered to isolate and build the flexor and extensor muscles of your forearms, your wrist and your fingers.
2 positions : forward grip and reverse grip
Wedge is in great shape [barely used], box shows shelf wear and some scuffs.
Operating Manual included.