Used together with the Ascension for ascending rope. Angled attachment hole and special shape allow it to remain flat against the stomach. Rectangular upper hole for attachment of shoulder straps to position the CROLL correctly. The CROLL slides up the rope easily as the user ascends. For use on single rope from 8 to 13 mm. CE certified EN 567.
Functions well, but has a tendency to slip every once in a while. Recommend using a line smaller than 13 mm. so the cam can remain more fully closed. And ALWAYS use a backup climbing not. Stuff happens, gear fails, Gravity is constant.