Amazing transformer-type camming unit with a massive expansion range, covering from smaller than a size 1 Red BD Camalot to way bigger than a size 3 Blue Camalot, in fact almost as big as a size 4 Grey Camalot, whilst weighing little more that a size 5 Grey Camalot.
Other plusses include that the cord is easily replaceable and that the whole thing compacts down neatly for hanging on a harness, much neater than any large standard cam does.