Great Boulder Brush
Bought this brush to use with my Booster brush holder from weakclimbing.com.  It works perfectly with this attachment and is my preferred setup for brushing holds on a systems board such as Kilter Board or Tension Board.  If you're tired of hunting down the nearly worn out and oversized brush that is duct taped to a painters pole at your local gym, grab yourself one of these and brush with confidence as you can get into the tight spaces on the tiny holds on your favorite systems board.
Rating: 5 stars