Made to prevent accidental opening - the OK Triact-Lock from Petzl! This carabiner comes equipped with a Triact closure, which requires the sleeve to be pushed up and turned before the gate will open. That way, you'll be basically immune to the human error of not closely it properly. The oval shape of the carabiner makes it easy to position pulleys, ascenders and progress capture pulleys. The H-profile and the keylock nose make the carabiner easier to operate, even with gloves on.
