2WIN2BUY 2 Packs Auto Locking Carabiner,30KN Heavy Duty Large Clip Climbing Carabiner,Aluminum Twist Lock Carabiners for Rock Climbing,Camping,Rescue (CE Rated,D Shape)

【Durable & Strong Material】Locking carabiner is made from Aluminum 7075, which is a manufacturing material for aircraft, very strong and with CE certificate guarantee. It is only 3 oz, about 4.5 in. Strength: Closed - 6744 lbf / 30 kN; Open - 1574 lbf / 7 kN; Minor Axis - 1574 lbf / 8 kN.
【D-Shape & Unique Safety Groove】Make the connected harness and protective tools fixed on the force position of the major axis. A special designed groove on the bottom, which can effectively prevents connecting component from moving. Make it more safe and stable while climbing.    
【One-Hand Easy Operation】Instantly lock and one hand to open, 2 steps  locking, a simple twist the barrel and push against the spring load will open, Automatic re-locking when you release the pressure.
【Anti-Skid Screw Locking Gate】The Screw Thread over the gate is speacial designed to be Anti-Skid. Make it more smoothly to lock.  
【Multifunction to Use】Carabiners can be used to connect parts of an anchor system like your ropes or harness, or to hang bags,shoes or other gear. It is great for outdoor activity, camping, fishing,hiking, traveling, keychain,fall protection system,anchor setting,rappel, climbing,rescue etc.   Package included: 1/2/3/4PCS x Auto Locking Carabiner.