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Petzl ASCENTREE B19AAA Blocker Fist - Blocker System - PETZL - 154.44€ - 1
Petzl ASCENTREE B19AAA Blocker Fist - Blocker System - PETZL - 154.44€ - 2
Petzl ASCENTREE B19AAA Blocker Fist - Blocker System - PETZL - 154.44€ - 1
Petzl ASCENTREE B19AAA Blocker Fist - Blocker System - PETZL - 154.44€ - 2

Petzl ASCENTREE B19AAA Blocker Fist

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€154.44 VAT Inc. €154.44 Without VAT

Double locking fist for pruning.


"Ascentree" product description

Designed for climbing trees with double rope technique and "footlock" or with two foot ascenders.

The opening trigger allows you to install and uninstall the blocking handle with one hand at any point on the rope. It can be easily handled even with gloves.

The double density grips are molded and have a support area for the index finger and a wider bottom area to prevent the hand from slipping. This geometry guarantees a comfortable grip with the hand as well as a powerful agent that allows to significantly increase the efficiency of rope ascent.


  • Ergonomic molded handle that guarantees a good, comfortable and powerful grip.
  • Cam fully integrated into the clamp body to prevent friction.
  • Wide grips compatible with the use of thick gloves.
  • Holes at the bottom to connect a lanyard and to attach a pedal with a maillon.
  • It incorporates a toothed cam with an evacuation slot to optimize operation in any condition (icy rope, muddy...)
  • Holes in the upper part to clip the rope (useful as a self-belay or in the assembly of hoists).
  • For double rope from 8 to 13 mm in diameter.
  • Weight according to manufacturer: 330 g.
  • Individually tested.


Petzl is a family business that, over time, has become the largest European manufacturer of personal protective equipment for those who evolve sporting or professionally in the vertical world and in the dark.

Petzl, a passion business that is part of the continuity and transmission of this human adventure, with the sole mission of creating value for the user. Petzl's story begins in the 1930s and we introduce it to you below.

Fernand Petzl, passionate caverist and ingenious craftsman, imagines in his workshop tools to explore the depths. In 1968, the inventor markets his first products and founds Petzl in 1970.

For several decades, Petzl has provided a stable environment conducive to innovation and industrial excellence. This same path is what the new generation wants to follow, ready to continue the adventure.

Petzl develops its designs and projects based on pillars and values ​​that motivate them.

For 50 years, four pillars have guided Petzl. Four fundamental values ​​that motivate all its decisions and that are exposed:

Continue to be a stable family business.

Foster the pioneering spirit to imagine the best solutions

Guarantee industrial excellence with a goal of zero defects and be close to our communities by informing about good practices throughout the world for greater safety.

Petzl is aware of its responsibility towards the user who entrusts his life to its devices. That is why Petzl develops, analyzes and qualifies all its products beyond the required standards and norms. Its design center, based in France, integrates all areas related to product design: mechanics, textiles, electronics, optics and computing. From the design and prototype phases, product reliability and user safety are constantly evaluated, paying special attention to the risks of use.

Petzl has laboratories dedicated to product testing: dynamic tests, impact resistance, fatigue tests, performance, quality of light beams and flashlight autonomy. In addition, the tests in the field test the ergonomics and reliability of use.

Do you need a device to work at heights? trust experts, trust PETZL.

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