BEIFENG Auto Locking Carabiner 25KN Climbing Carabiner Large Carabiner Clip Obtained UIAA Certification Heavy Duty Carabiners Suitable for Rock Climbing, Camping, Gym,Rescue Black (Black&Blue3Pcs)

Hold the carabiner in your hand, twist the 1/4 barrel with your index finger and thumb, and push inward to open the carabiner. When you release your hand, the carabiner will automatically lock instant...