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 speaker stands on their own. Driven by innovation and years of research and development, the Air Powered Series feature an internal shock that lifts speakers weighing 50 pounds. and less with no effort, and requires just one hand"s worth of effort to raise speakers weighing more than 50 pounds.. 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 levelling leg that allows the speaker stand to stay level on risers, stairs, and other uneven surfaces. TS 100B Product Breakdown: Raise and Lower the Speaker with Ease. Patented Tripod Design Over sized Heavy Wall Aluminium Tubing100% Field Serviceable Parts. The TS 100"s offset tripod base design for very tight internal fittings, doing away with unnecessary sloppy leg problems, and includes a super strong die cast metal collar ..The entire stand uses oversized, heavy walled aluminium tubing for durability, functionality, and weight savings. The TS 100 will not rust or corrode is very smooth to operate, and is extraordinarily strong yet lightweight. From the foot caps on the bottom of the tripod legs all the way up to the speaker adapter at the top of the stand, the TS 100 is serviceable by parts as needed over its very long lifespan..