Universal Vizio E55-E1 E-Series 55” Class Ultra HD Home Theater Display compatible full motion wall mount with 33" extension. The 33" extension allows for 180º of left right swivel, as well as 15 degree adjustable tilt downward. The 19" w x 12.5" h wall plate assembly attaches to studs on 16" centers. Vizio M55-E0 wall mount bracket requirements: Fit VESA 400x400mm mounting holes on back of the TV Support 34.1 lbs weight without stand Swivels 180 degrees left/right Cable management tunnel built onto arms Shifts 6" left or right of center along two piece wall plate