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.


Facilitates ascents on a single rope:

  • Upper strap is connected to the mechanical Prusik to allow the ZIGZAG or ZIGZAG PLUS and CHICANE unit to be raised
  • CROLL L rope clamp is integrated, for a comfortable ascent in conjunction with a PANTIN foot-mounted rope clamp (not included)
  • Lower Dyneema strap with foot loop for optimal foot positioning

Easy to install and remove:

  • Easy to put in place, thanks to connectors and adjustment buckles
  • Comes with XS size TOOLBAG tool pouch, making for a system that is always ready to use
  • CROLL L rope clamp is easy to install, thanks to the integrated thumb catch
  • Multiple settings adjust to different shapes and sizes
  • Optimal durability, thanks to components available as spare parts

Distributors stocking this product are listed below and typically ship within a week. If no distributors are listed, the product will typically ship within 7 to 14 days.


Product Specifications

Product # D022EA00
Product Name Knee Ascent – Clip
Width 3.07 in
Length 5.91 in
Height 5.32 in
Weight 1.05 lb
Material Aluminum, Steel, Nylon & Polyester
Rope Capacity 11.5-13 mm
Rope Compatibility Low stretch kernmantle rope

Instructions & Warnings