Review by curtis_g Good Features Great autolocking belay biner. Takes a day or two to learn to flip this open fast (much faster than a screwlock). Bad Features none Recommended Alternatives none
Read 5 Retailer Descriptions From EMS: Petzl's William Ball-Lock is a pear-shaped carabiner with a large opening and an automatic locking system. Suitable for organizing at belays and belaying with a Munter hitch.
Large size to allow anchoring of several ropes and slings
Large opening
Wide pear shape facilitates belaying with a Munter hitch on single or double ropes
Review by curtis_g Good Features Great autolocking belay biner. Takes a day or two to learn to flip this open fast (much faster than a screwlock). Bad Features none Recommended Alternatives none
Review by climbercam Good Features Big, Easy to handle. Bad Features Well used ones are hard to open. Auto-lock starts to stick after much use. Recommended Alternatives Screw lock.
Petzl's William Ball-Lock is a pear-shaped carabiner with a large opening and an automatic locking system. Suitable for organizing at belays and belaying with a Munter hitch.
Large size to allow anchoring of several ropes and slings
Large opening
Wide pear shape facilitates belaying with a Munter hitch on single or double ropes