Adds a second, better balanced mounting position to Bracket 1a or Bracket 1c, close to the middle of the camera, while allowing continued use of the mounting position on the original Bracket 1a or Bracket 1c. An additional cold shoe, (cold shoe-1) can also be mounted on top in a horizontal position. Best with lighter gear as it can add some flex to the bracket system. Mfr# VISLPP