The Photon Lock Janja Carabiner is a full-size locking carabiner designed for alpinists and multi-pitch climbers. It features I-beam construction for high strength with minimal weight, a SphereLock nose for secure and easy clipping, and a lightweight ergonomic screwgate. The laser-etched lock indicator provides clear visual confirmation of lock status. It has strength ratings of 23kN (closed), 9kN (open), and 8kN (minor axis). The carabiner weighs 43 g, minimizing load for long climbs.