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Unique shape carabiner with Twin-Gate wire-gate and Captive systems. Light and compact.

Unique carabiner in “hourglass” design in which a simple wire opening isolates the belay loop and maintains the correct orientation even with the open carabiner. The shape guarantees the positioning of the carabiner automatically. Used for belaying and rappelling. Clepsydra is the arrival point of an analysis of the various problems that occurred in the belaying of a partner:
– double opening with Twin-Gate system (Wire-Gate) to avoid the accidental opening of the carabiner “always and in any case”
– flat in the lower part to follow the shape of the webbings of the belay loops, with “captive” safety wire to avoid “cross loading” or positioning along the minor axis of the carabiner, which would greatly reduce its strength
– rounded upper part to allow easy movement of the device and the sliding of the rope / ropes if the tube is used, without edges which would ruin the ropes themselves
– external flap that prevents the device from getting sideways and working badly

All in a very small and light size that adapts to the new trend of using lighter and thinner materials such as the new diameters of the ropes, and therefore with the elimination of all the superfluous. Individually tested, with the date of testing and progressive number laser-marked on it.

Out of stock


“Thanks to its design and the twin-gate system, the carabiner was created to guarantee safety while maintaining versatility and low weight. It is a must of Grivel”
Hervé Barmasse, Grivel Team

  • Activities:climbing, mountaineering
  • Materials/construction/technologies: forged aluminum, Twin-Gate system with double gate
  • Certifications: CE EN 12275 – class T, UIAA 121, CE EN362
  • Weight: 67g (2,4 oz)
  • Length-Width-Opening: 97-66-22 mm
  • Resistance
    closed gate strength: 20
Shipping & Delivery
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Free postage in Switzerland and Europe is offered for all purchases over 60 CHF.

Switzerland: We ship with Swiss Post Economy, which usually arrives in 2 working days.

Europe: We ship with Swiss Post Economy, which usually arrives in 5 working days.

For larger packages such as skis we may use a different courier services.

Please see country options at checkout to see which countries we currently ship to.

For any orders outside of Switzerland and Europe, expect to pay customs duties, import paperwork and the country destination VAT.