The Matthews K-Stacker II for Kino Flo FreeStyle and 4x4 is a simple solution to mount multiple FreeStyle 31 or Kino 4x4 fluorescent lights on just one stand. Save space on set while creating a large, soft, light source. Neatly keep lights, cables, power supplies and ballast together as one unit. A rolling stand is handy for moving your large source on set. Mount either (3) FreeStyle 31 or (2) Kino Flo 4x4 fixtures. Can be used to mount lights vertically on a stand or hang horizontally from a studio grid. Fixtures can also rotate from vertical to horizontal.