Petzl ZIGZAG Mechanical Prusik The Petzl ZIGZAG is an essential, innovative tool that lets tree care professionals move efficiently and safely within a tree using classic Prusik pulley-system technique. It combines precision, fluidity and versatility for reliable performance in the canopy. It's in stock at Gustharts as an authorised Petzl dealer, with free UK delivery on this order. At the heart of the ZIGZAG's performance is its friction chain, giving precise, fluid movement and controlled, smooth ascents and descents. The integrated pulley runs on sealed ball bearings for easy slack-taking and efficient rope manoeuvres. It works on either doubled ropes or a single rope, and the fixed lower attachment hole keeps the device aligned with the worker's axis, optimising grip and control. Key Features & Benefits Intuitive to use — technique identical to a classic Prusik pulley system Device locks automatically once the friction chain extends Release lever gives precise control over rope feed and movement speed Sealed ball-bearing pulley with curved side plates for easy slack-taking Works on doubled or single rope, with CHICANE and Knee Ascent compatibility Upper attachment hole for rope end or CHICANE auxiliary brake Auxiliary attachment hole for a ZILLON lanyard or second system Steel construction with curved side plates for durability Technical Details Certification CE; compliant for ANSI Z133 use Rope Compatibility 11.5–13mm, EN 1891 Type A low-stretch kernmantle Working Load Limit 140kg Materials Aluminium, steel, nylon Weight 365g Why Choose the Petzl ZIGZAG? Petzl is a globally recognised leader in climbing and rope access hardware, and the ZIGZAG is the standard, more affordable entry into Petzl's mechanical Prusik system. The ZigZag Plus adds refinements over this standard version — if budget allows and you want the latest updates, the Plus is worth comparing; otherwise the standard ZIGZAG delivers the same core friction-chain performance. Pairs Well With Complete your setup with the Petzl CHICANE auxiliary brake for single-rope use, or a compatible 11.5–13mm climbing rope. Also Known As Also searched for as: Petzl ZigZag, ZigZag mechanical prusik, Petzl tree care ascender, ZigZag friction device. FAQs What rope diameters does it work with? 11.5–13mm, using EN 1891 Type A low-stretch kernmantle ropes. Can I use it on a single rope? Yes — with the CHICANE accessory added for extra descent friction. What's the difference between the ZigZag and ZigZag Plus? The Plus is Petzl's updated version of the same friction-chain mechanical Prusik; the standard ZigZag offers the same core function at a lower price point. What's the working load limit? 140kg. Does it comply with ANSI Z133? Yes — the ZIGZAG is designed for use in compliance with the ANSI Z133 standard.