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Superior Belay security.

The Ceros minimises the risk of cross-loading. Easy to operate with one hand, and able to locate on the belay loop in a single movement, the Ceros is intuitive to use and simple to rack. Correct orientation is achieved with an internal wiregate that keeps the Ceros captive on a belay loop, and a horn which prevents assisted braking devices moving onto the carabiner’s spine. Full section top bar gives smooth rope control and resists wear.

Belay carabiner for consistent rope control and compatibility with belay devices
Belay carabiners give smooth and confident belaying with tube and assisted breaking belay devices. They have full section top bars for consistent rope control and reduced rope wear. Their shape resists flipping into sub-optimal orientations when belaying, acting to ensure the carabiner loads along its strongest axis.

Directional belay carabiner designed to ensure optimum orientation when belaying
Downward opening internal wiregate enables secure attachment to belay loop in one movement, and prevents accidental removal once located

Keylock nose eliminates snagging
This carabiner’s nose slots into a groove in the gate, allowing it to achieve full strength without a gate notch. This creates a clean internal profile that won’t catch on gear, bolts or slings, giving easier clipping and removal from systems.

I-Beam construction for optimum strength to weight ratio
I-Beam construction techniques allow carabiners to be lighter without compromising strength. This is achieved through hot forging, a process which allows metal to be made into complex shapes that improve functionality.

Full section top bar for consistent rope handling and increased longevity
A rope running over a full section top bar has more consistent handling characteristics than one running over an I-Beam surface. Our belay carabiners feature full section top bars for greater control rope control. Ropes loading over full section bar also bend less than those loaded over I-Beam surfaces, increasing rope longevity.

Pronounced horn and flat base encourage optimal loading
The top of the Ceros' spine prevents assisted breaking devices and rope controllers from twisting around the spine and cross-loading the carabiner.

I am a huge fan of orientation-limiting biners for belay device connection - either onto my harness or directly off the belay! Besides the ergonomic help in always having your belay device in the same space/place meaning you do not need to look at it, nor do you need to keep ensuring correct orientation/loading, as with the knot on the climber's harness, this is the single connection point and deserves to have as much redundancy / correct usage as possible without human interference.

The correct usage of these orientation-limiting locking 'biners is the narrower end (the end with the internal wire) attached to the belay-loop or belay anchor and the pear nose of the 'biner for the device. 
When belaying off your harness in this manner, the 'biner is often vertically aligned. This means that the locking barrel on a screw gate locker is at risk of unscrewing because gravity is pulling it downward, and active belaying can sometimes cause the barrel to "shake down/loose"

For this reason, I choose auto-locking biners.

Also, you *know* that your device is locked when the gate closes!


(main axis)


(minor axis)


(gate open)

Gate Opening
Ceros Kwicklock