This is custom made speedbag swivel I acquired a long time ago off of a boxing forum online. This is a Jump Cannon’s “evil swivel”. Extremely high quality design and very rare, I’ve been told the rarest swivel and best quality ever made. The single ball hook design allows for very fluid 360 movement making performing more complex combos a lot easier and way more fluid. The plate is machined from a solid piece of steel, and so in the ball bearing and hardware. This is intended to last a lifetime.