Petzl Knee Ascent Loop Canyoneering Updated step-by-step illustrations in the

Updated step-by-step illustrations in the Rope Access chapter

hex-like shapes that can be placed in parallel sided cracks

three small flexible ones in back that will not interfere with wearing a backpack

2:1 mechanical advantage

Petzl Knee Ascent Loop Canyoneering Updated step-by-step illustrations in thePetzl KNEE ASCENT LOOP Knee ascender assembly with foot loop to facilitate ascents on a single rope, for tree care The KNEE ASCENT LOOP assembly facilitates the arborist's ascent when using the ZIGZAG or ZIGZAG PLUS mechanical Prusik on a single rope. It contains an upper strap, a CROLL L rope clamp, a lower strap with foot loop and an XS size TOOLBAG tool pouch. The system is entirely adjustable and adapts to all shapes and sizes. Detailed