Pro-Boom: Comes complete with heavy-action boom and your choice of Deck Plate or Redi-Mount. Recommended when fishing below 1,000 feet. Base fits all Reel sizes 6/0 thru 16/0 and 50 thru 130 International sizes. Recommended for reel sizes 12/0 and larger.
Pro-Boom Jr: Comes complete with medium-action boom and your choice of Deck Plate or Redi-Mount. Recommended for fishing above 1,000 feet or when using reel size 6/0 - 9/0. Recommended for reel sizes 6/0 - 10/0.
Pro-Booms do not include Elec-Tra-Mate and Penn Reel shown in picture.