A carabiner that provides safety by closing itself after opening.
Auto-Locking" snap hook/ carabiner.
 A carabiner that provides safety by closing itself after opening. Until recently, karabiners with automatic locking systems required a series of questionably frustrating turns and pulls to open the gate, and when you release the gate, it closes and locks automatically.
Features
The sleeve locks manually, only when desired by the user
Can be operated with one hand