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Petzl's lightest locking carabiner.

Unlike most locking carabiners, Petzl designed its Spirit 3D Screw-Lock Carabiner for climbing-specific situations like belay stations and top-rope anchors. Made solely out of aluminum, this is Petzl's lightest carabiner, and its H-shaped cross section gives it a surprising amount of durability with a superb strength-to-weight ratio. It has a very compact size to keep anchors clean, and its size helps accommodate multiple climbers at a single belay station. Despite its compact quality, this biner has a wide contact surface for better rope glide that also reduces wear on the carabiner for excellent longevity. The screw-lock sleeve is easy to use and provides efficient clipping, and the visual indicator clearly points out whether it's locked or not. This pear-shaped carabiner also features a keylock nose for snag-free clipping every time. 

  • Aluminum with H-shaped cross section
  • Screw-lock with visual indicator
  • Keylock nose
  • Pear-shaped carabiner with wide contact surface

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Here's what others have to say...


The best light weight Best light 'biner

  • Familiarity:I've put it through the wringer

I've used a number of light-weight 'biners and this one is by far the best I've used in the field! The locking mechanism is as smooth as silk, the size is perfect (not too small to operate, even with gloves on), and the red indicator helps me remember to lock it. Also, the fact that the H-stock material has a widened section on it makes it smoother than any other modified-D shaped 'biner on the market when using it in a Reverso. And the key-lock nose is a must have for any 'biner. This and the Attache are now my go-to links!

Photo: teaching rescue skills to a group in Hatun Machay, Peru on a SIET expedition (

The best light weight 
Best light 'biner

Climbing to kayaking

  • Familiarity:I've put it through the wringer

Love love love!!! The main reason I got this was to attach to my personal anchor system and clip to manky thin chains! This caribeaner is really thin and fits excellent into chains so you can be safe while cleaning sport climbing routes.

It works great in the water as well won't go into much detail but I had some grains of sand get into it and got so stuck had to get pliers to unstick the screw gate


Spot on

  • Familiarity:I've used it several times

Like all Petzl products these carabiners are extremely well thought-out. Keylock nose for easy clipping/unclipping (I'm not sure why carabiners are still made with the traditional hook - all it does it catch on the rope or slings when clipping). Lightweight with a useful red safety marker so you know when it's not locked. Quick spinning screw action (usually one flick is all you need). Held up great over several climbs - I'll be buying more of these as well as the larger Attache model.


Tend not to ice up

    Of all my lockers, I like these the best. They're very light, have a key lock nose, you can lock (screw) or unlock (unscrew) them with a single flick of your thumb, and they tend to resist icing up much better than other screw-lock carabiners.


    Light weight, reliable

    • Familiarity:I've put it through the wringer

    Like the design and the weight, that's it... I finally decided to retire all my BD locking binners and switch to this model of toy...


    Absolutely Great

    • Familiarity:I've used it several times

    I have used a number of screw lock carabiners from Black Diamond, Mad Rock, and HB. These are by far my favorite general-purpose lightweight and miniature lockers. The red marker is a great add-on for quick identification, and the screw itself has a great action. In addition, it has a smooth bevel that doesn't catch cordelette or slings like the flat end of some other lockers. Plus, they're lighter than many other non-lockers out there.


    Top notch locker

    • Familiarity:I've put it through the wringer

    This is a fantastic locking carabiner to keep with you as generic locking carabiners or for locking draws for clipping anchors. I'm normally not much of a fan of screw gates (vs. auto-lockers) but the Petzl safety marker is a huge plus. Just like the original non-locking Spirit, this carabiner has awesome ergonomics, clips as smooth as butter, and has a low profile nose that fits anywhere.

    Top notch locker
    Pairs well with the Mega Jul

    Pairs well with the Mega Jul

    The Mega Jul slot for using a carabine as a lever for lowering and rappeling normally only fits the nose of the biner. But the Spirit's low profile nose lets it completely clip the levering slot for more security.