Self-locking Mountaineering Climbing Aluminum Carabiner 24KN - Black Silver Color: black silver Dimensions (L x W): Approx. 9.8 x 5.8 cm/ 3.86 x 2.28 inch The ultimate tension: 24KN (2400kg) Self-locking O shape carabiner Application:exploring, rappelling, rescue, engineering protection, aerial work