IQ Series® X-style Keyboard Stand with Patented Memory Lock System, Five Height Settings, Stabilizing End Caps, and Double-braced Tubing - 150 lbs. IQ-X Stands bring all the features and rigid strength of our original IQ series stands to a tighter form factor. We’ve reduced the depth, based on user feedback, while keeping all the same great features users love about the series. Ultimate Support’s patented Memory Lock system and unique stabilizing end caps offer keyboardists time saving onstage luxuries, along with peace of mind. IQ-X Series® stands are ideal for supporting everything from lightweight synthesizers and MIDI controllers to the heaviest of professional keyboard workstations