Long swing arms extend standard width of center frame of 45″ to 53″ between hinges, allowing 55″ TV with average width of 48″ to fit between side screens folded as close as 90 degrees. Long swing arms are also suitable for 3x 65″ TVs at 60 degrees or less angle of side TVs
Extending standard center frame requires pair of swing arms. Required for 3x 65″ TVs is 4 brackets (2 sets).
Extra long swing arms can not be shipped inside standard triple monitor stand and must be shipped in 2nd separate box.