Petzl Croll B16 Chest Ascender

Petzl Croll B16 Chest Ascender. Angled attachment hole helps keep device properly aligned. Rectangular upper hole for the attachment of shoulder straps to improve positioning. Chrome-plated steel cam with inclined teeth to provide grip on wet, icy or muddy ropes. Self-cleaning slot on cam. Can be installed onto the rope one-handed (with ergonomic thumb catch). Weight: 130g.
For ropes between 8 and 13 mm in diameter.