How do you adjust legs on the Spyder Shelf?

The legs on the Spyder Shelf are adjusted using the screws on each side of the leg. Loosen each screw to position the leg in the desired location. Adjust so the legs are positioned to rest on the back of the monitor to make the shelf surface level then tighten the screw. Note, the leg joints have teeth that mesh together; the legs will lock when the gears are meshed.