The spring of the blue cap switch is longer and thicker. The cap switch’s housing on the bottom has a hole, that goes through the center mast.

​The center pole of the blue cap switch is shorter, but larger with a big hole in the center. The blue cap switch has a milky bottom housing. It is like a cap that wraps around the center mast of the bottom housing, unlike the traditional stem with the central pole inserted into the center mast.īlue Cap Switch VS Traditional Blue Switch ​The center pole in the Cap Switch has a big hole (the right one is the cap blue switch).