Air-Powered Series Lift-assist Aluminum Tripod Speaker Stand with Integrated Speaker Adapter - Extra Tall. Air-Powered Series speaker stands from Ultimate Support represent everything all other speaker stands aspire to be. They're incredibly strong, extraordinarily sturdy, lightweight, 100% field serviceable, AND raise and lower speakers on their own! Driven by innovation and years of research and development, the Air-Powered Series feature an internal shock that lifts speakers weighing 35 lbs and less with no effort, and requires just one hand's worth of effort to raise speakers weighing more than 35 lbs! There are three models to choose from: the TS-100B, TS-110B which offers additional height, and the TS-110BL which also offers additional height plus a leveling leg that allows the speaker stand to stay level on risers, stairs, and other uneven surfaces. Finish: BlackSpecsHeight: 5'2"- 9'2" (1575 mm - 2794 mm)Weight: 13 lbs. (5.8 kg)Base Diameter: 62" (1575 mm)Telescoping Tube Diameter: 1.5" (38 mm)Adapter Diameter: 1.375" (35 mm)Load Capacity: 150 lbs. (68.2 kg)Folded: 57.5" x 5.5" (1461 mm x 140 mm).