Per Mtn Tools Site:
"Fast, clean & non-destructive steel "finger locks" fit thin cracks from 1/8" to 1". Thread 2 feet of 1/2" tubular tie off web jamming the knot on the outside of the radius. Clip a couple CAM HOOKS to each aider and shuttle up thin cracks with speed and efficiency, stoping only occasionally to place lead pro. Double up on mid sizes."
Micro, Narrow, Wide & Extra Wide
Personal ExperienceThese baby's are the ticket when it comes to speed and time saving effort.
I have actually leap frogged 100' 1/4" cracks with two of these, stopping periodically to place a piece of pro or two. They are indeed an engineering feat for the aid and trad climber alike. I have two of each and take them all when any aid gig is the plan.
**Ed Leeper has retired from making these as of July of '09. Get em while ya can!!**
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