Slackibloc 4 (Slack Inov') This product is no longer in stock


A high performance weblocker for all the 2,5cm webbing

Smart and easy to use, this new model made from tempered aluminium alloy with hollow diverter allow to gain a lot of weight without any compromise on security.

Prohibitted for jumpline / trickline use.

Made by Slack Inov'

This is the essential gear for longlining over 50m, you will be able to "pre-tension" your setup before rigging with your pulleys, getting more rope pulley distance to adjust the tension. The front pin is built-in and cannot be lost, helping in uneasy setup.

It fits perfectly with our Supertube, Superflat and 25 mm wide webbings. However, it should be use differently with the Hybrid type webbings (eg Moonwalk).

It also can be used with our thicker webbings such as Kill Bill or Club S 

The Slackibloc converts up to 95% of the breaking strength of the webbing. As a comparison, the Linelock, goes up to 70% (or 15kN)

For more details on the weblock, please read this article on our blog here.

To go further:

  • To lock the webbing and prevent sliding, think about the ClipN'Bounce


  • Combined with the Linegrip, you can rig low tension lines with no other gear.

Precise description

The Slackibloc preserve 95% of the webbing resistance. Therefore it will be mandatory for hight tension setup. Its new one-piece pin technology allow fast and easy handling. Really convenient for highlining.
Logos Hexagone largeur sangle slackibloc     
Accept webbing in simple or multiple layers. Up to 26mm wide and 10mm thickness.
Anti-spitting design: In the event of rupture, no one piece would be spitted around.
The wide connexion eye allow to use any type of connectors: Quicklinks from Ø8to Ø20mm, shackles from Ø8 to Ø16mm in both direction, shackles from Ø16 to Ø20 onthe pin, every  EN 12275 symetrical carabiners.

Double balls Stainless steel locking pin technology offering the best ration weight/resistance. Possibility to remove the ring and/or to attach it with a anti-lose elastic leash. During pre-tension, the pin rotate freely and do not twist its leash.

Same setup as The Sladlock Power


Slacklining and particularly Highlining are sports having no legal framework or norms concerning the gear or the setup.

Consequently we cannot warranty our gear for Highlining.
Our products are tested by independent labs (Apave) and inside of our company via a process evolving with practice.

The results of those tests have no legal values, they aim to ensure the safety and comfort of using our equipment.

It is the responsibility of the slackliner to choose the right gear with adequate resistance and to have the necessary experience to adapt his installation to his practice.


  • Don't rig your slackline accross a path,a road or any crossing
  • Don't rig your slackline higher than 2m
  • Ride on a grassy or soft ground, without roots or rocks
  • Always backup your setup
  • Never use ratchets for highlining
  • Never use urban furniture as anchor point

This equipement is absolutely not made for highlining. Find more information on our website

Items cannot be considered as PPE (personal protective equipment)

Setup instruction :

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