The Twist-in Ground Socket sinks 20" into the ground to ensure a straight and stable pole. It features 1/2" "twist assist" holes that allow a screw driver to assist with installation. It allows the full height of the pole to extend above ground. This is the heaviest-duty ground anchor.
The Ground Stake sinks 17" in the ground, leaving 7" above ground that the tubular pole can slide over. It is ideal for supporting lighter-weight feeders.
The In-ground Socket sinks 15" into the ground, and will lower the pole into the ground by 12".