The UM-01 Ball-Joint Adapter allows you to mount the u-mount Tablet Case to the TS9900 Travel-Ease tripod stand, the TS9901 Heavy-Duty tripod stand, or any microphone stand with standard 5/8"-27 threading. The UM-01 acts as a substitute for the mounting arms included with the TCM9150 Mounting System when their reach is not needed or desired. 360 of rotation and 180 of tilt are provided by a machined steel ball joint. Typical uses include supporting a tablet computer for use as a conductor’s stand, sheet music stand, lyric sheet, prompter, typewriter, and remote mixer.