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Climbing Holds   >   Training Grips  >
Ultimate Cliffhanger Boom Blocks


Boom Bricks
Boom Blocks
Boom Blocks
  • 2016/03/03...
    Boom Blocks are back! Our original molds lasted almost 1 year before wearing out. We just finished making brand new molds so we can begin Boom Block production again :D

1 Hold Hardware Options
Wall Size
Color Options:
Special Instructions



    12" Boom Blocks:

  • 12 Inches long
  • 2 1/4" Deep.
  • Fasten with 1 bolt and two screws, or with (8) 3" long Screws.
  • These blocks were designed to allow customers to re-create the Ultimate Cliffhanger obstacle as seen on the American Ninja Warrior T.V. Show.
  • The primary rung used on the show is 2 1/4" deep just like these, however these Boom Block have a slightly rounded edge, and a more rounded edge. The round edges will make these rungs a little more difficult to hang on to, but they'll allow you to train longer and harder without damaging your skin!
  • 90 Grit Sandstone texture.
  • As you can see from the video to the left, these climbing holds are also great for bouldering. Steve is using these as pinches on a 45 degree overhanging wall.
  • Made with pure polyurethane.
  • Designed by Steve Dison.
  • Released 2015/03/29.
Boom Blocks as Pinches
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