The Petzl William Ball-Lock is a large, pear-shaped autolocking carabiner for belay stations and belaying with a Munter hitch.
Features
Great capacity thanks to its large dimensions; carabiner can hold a very large quantity of equipment and it's the optimal shape for belaying with a Munter hitch
Ergonomic shape is designed for gripping with gloves on
Asymmetric pear shape facilitates opening and the manipulation of the locking system
Keylock system avoids any involuntary snagging of the carabiner
Automatic Ball-Lock system features a green ball indicating when sleeve is locked, providing a quick visual safety check
Ball-Lock system can be opened and closed easily with one hand and can be operated with gloves on; unlock gate by pressing in ball and twisting sleeve