Chest ascender The CROLL chest ascender is unmatched for efficiency on fixed lines. Compact and lightweight, it does not interfere with progression. The stainless steel wear plate improves durability by reinforcing the rope friction zone.  Used with a BASIC ascender or with an ASCENSION handled ascender for rope ascents  Toothed cam with self-cleaning slot optimizes performance under any conditions (e.g. frozen or dirty ropes)  Stainless steel cam has better resistance to corrosion  Stainless steel wear plate for improved durability  Open the catch by pinching for simple, quick manipulation  Lower hole angled to keep the CROLL chest ascender flat  Upper hole for attaching a TORSE shoulder strap and keeping the ascender in position Specifications Material(s): aluminum for the frame, stainless steel for the cam, nylon for the trigger. Weight: 90 g Rope: for use with single ropes between 8 and 11 mm Certification(s): CE EN 567, UIAA Made in: FR Guarantee: 3 years Reference(s):B16BAA Color(s): yellow