There's No need to bend over to set or release the Mobile mechanism on these Mobile bases. Simply step down on the foot lever to activate the height-adjustable leveling feet on two of the corners, and your equipment is locked in place. Then, when the work is done and it's time to move the equipment, flip up the levers with your toe, and you're easily Mobile on the smooth rolling extreme-duty casters. We also placed the adjustment bolts along the edge of the adjustment bars for secure double-axis and double-contact rigidity.