The Hyskore Swivel Pistol Rest has 2 modes of operation. With the lock up knob in place, it is a solid portable gun support platform. With the platform less than 3" off the deck, it allows shooting at full arm extension. Remove the lock up knob and it smoothly pivots through over 150 degrees on an industrial ball bearing set. This rest has been designed for the shooter who engages either multiple or moving targets. It is the perfect handgun accessory for the varmint hunter.