The optional Plug Clamp is designed for removing concrete plugs where the post has broken or rotted off. It can grab concrete up to 18” round and is also great for removing Oz-Posts that have been located incorrectly. The pointed ends of the clamp fit into the holes on the Oz-Post sleeves for quick and easy removal. The Plug Clamp can also be used to remove the compression collar on all Oz-Post models designed for round posts. To remove the compression collar, put the pointed ends of the plug clamp below the bottom of the compression collar and very slowly engage the jack in an upward motion.