Petzl Progress Adjust I Caving The Butterfly Lift is an

The Butterfly Lift is an intuitive manual counterweight flying system for human payloads up to 350 lbs or non-human payloads up to 500 lbs

Strength: 22kn when used as a looped sling or a two/three point anchor or 18kn when used end to end

Length [mm]: 100

Rope diameters 8-12mm

Petzl Progress Adjust I Caving The Butterfly Lift is anPetzl PROGRESS ADJUST I Single adjustable progression lanyard PROGRESS ADJUST I is a single adjustable progression lanyard that allows, when combined with another lanyard, continuous connection for all types of progression (rope ascent, movement along a lifeline). Thanks to the ADJUST rope adjuster, the length can be quickly and easily adjusted. The connector is held in the correct position for easy clipping. Detailed description Adjustable single