Ultimate Support SP-100 Air-Powered Series Speaker PoleThe Ultimate Support SP 100 Air Powered Series Speaker Pole is incredibly strong, sturdy, lightweight, AND raise and lower speaker poles on its own! The stands in the Air Powered Series feature an internal shock that lifts speakers weighing 25 lbs. or less with no effort, and only requires one hand to raise speakers weighing more than 25 lbs. The new SP 100 speaker poles feature an expanding cylinder system that will firmly fit multiple speaker