Fits in wide cracks where nothing else will
These puppies are big! For fist crack and offwidth aficionados, Trango Big Bros rule. The expanding tube chock design is stable, lightweight, easy to use and strong. Because of their fixed nature when they're placed correctly they're almost impossible to dislodge when you're grunting by them, and they make a nice smooth rope guide at the lip of a roof. Their expansion range is phenomenal--a #4 Big Bro has greater range than an entire set of traditional cams.
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Works where nothing else will