UltimateSupport TS-110BAir-Powered Series Lift-assist Aluminum Tripod Speaker Stand w/ Integrated Speaker AdapterAir-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 w/ 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.TS-110B Product BreakdownHeight: 5.7-8.9" (1738-2727mm)Air Powered Telescoping MechanismLoad Capacity: 150lb (68.2kg)Heavy Duty ConstructionThe Ultimate Support TS-110B Tall Speaker Stand w/ Air Lift features a load capacity of up to 150 lb (68.2kg) and its air-lift system easily lifts speakers into position. The rugged stand features a lightweight anodized tubing and metal reinforced clamps securely support more weight than other stands. The stand quickly folds for easy transport and storage.Height 5.7 - 8.9" (1738 - 2727mm)Diameter Base Diameter: 62" (1575mm) Telescoing Tube Diameter: 1.5" (38mm)Adapter Diameter: 1.375" (35mm)Folded Dimensions 57.5 x 5.5" (1463 x 140mm)Load Capacity 150lb (68.2kg)Weight 17.2lb (7.8kg)Package Weight 14.2 lbBox Dimensions (LxWxH) 59.0 x 6.0 x 6.0"