Ultimate Support TS-99B Black Tripod PA Speaker Stand with Telelock Safety Height AdjustmentThe top of the Ultimate Line! The TS 99 is simply put, the strongest, most secure speaker stand around. Price is per stand. Adapter accommodates both 1 3 8(35mm) and 1 1 2(38mm) speaker sockets. The unique TeleLock collar allows one person to easily set up heavy speakers. The stop increases safety and prevents accidentally pulling out the center tube. The result of a larger diameter main tube is the most stable, heavy duty, yet portable tripod stand.