Mountain Equipment Company

Petzl William Ball Lock Carabiner


Free shipping on most items over $50

Available online

Free store pickup

Select a size to see availability

Rocksolid guarantee

Shop with confidence. If it’s not working out, you can return it (consumables, electronics, undergarments and swimwear excluded).
Really. If it's not up to snuff after you use it (a couple times) you can still bring it back. It lasts longer than 30 days, but not forever. We'll be fair about it.


A large, pear-shaped locking carabiner that’s great for belaying and rappelling. It can easily accommodate a Munter hitch with both single and double ropes. The large size also makes it useful for anchoring multiple ropes and slings, and keeping belays organized.

  • Ball-lock system automatically locks, resists accidental opening, and is easily opened one-handed
  • Green button indicates when gate is locked

Tech specs

Ideal for
  • Rock climbing
  • Indoor climbing
Gate typeStraight
MaterialAluminum alloy
Strength closed27kN
Strength cross-loaded8kN
Strength open8kN
Gate opening
  • 2.7cm
Snag-free noseYes
CE certifiedYes
Made inFrance

Reviews (3)

5 out of 5 stars with 3 reviews for Petzl William Ball Lock Carabiner

Ask and answer

Compare (0)