Petzl OK Screw Lock Carabiner

Many pulleys require an oval shaped carabiner to work properly. The OK carabiner is designed for just that. It's also very useful as a general purpose carabiner at belays. Symmetric shape is ideal for use with belay devices and pulleys to maximize efficiency no matter which end is closest to the device Oval shape works great with pulleys Keylock system Red lock indicator offers visual confirmation that screw lock is securely closed Made in Italy