This pear-shaped carabiner twists open with a single smooth motion and automatically locks shut.

• Designed to work smoothly with any belay device, whether it's an ATC, Super 8 or Munter hitch
• Twistlock mechanism can be operated with one hand, and won't lock up under body weight
• Large internal volume holds all the bulky knots, harness webbing and stacks of runners you could ever need