When every gram counts, the Mammut Sender Screwgate carabiner is the right choice for climbers who demand performance. This extra-lightweight and compact carabiner features a ‘D’ shape for easy handling. The key lock nose prevents any snagging when clipping and unclipping. The orange marking is an additional safety feature, acting as a warning if the carabiner is not screwed closed. In icy or dirty environments, a screw-locking carabiner is better choice in comparison to a twist-lock version. Mammut Sender Screwgate Carabiner Features: Extremely Compact and Light D-Shape for Easy Handling Orange Non-Closure Safety Marking Key Lock Nose for Easy Clipping and Unclipping Easy to Operate Screw Locking in all Environments Vertical Breaking Load 26kN Open breaking Load 10kN Horizontal breaking Load 9kN Weight Approx 48g