The Cassin Piu 2 Belay Device by Camp USA. Similar design to the Piu with the addition of a second carabiner hole to make lowering a second who is weighting the rope easier. Simply clip a carabiner in (specifically designed for the CAMP HMS Nitro and HMS Compact carabiners) and use it as a lever to gradually release tension. The teeth have been optimized for a wide range of rope diameters so climbers can use the same device whether they are rapping fat single lines or catching falls on skinny twin ropes.
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