Petzl Croll Chest Ascender used for ascending fixed lines (Ropes of diameters between 8 and 13mm - If there is any risk of a fall then you must use a minimum of a 10mm rope). New improved versions with slight change to the cam / trigger.
New improved version for 2013 the B16BAA. This petzl croll with self-cleaning toothed cam can optimise performance under any condition (e.g. rope that is icy muddy etc.). The stainless steel cam has better resistance to corrosion.
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