Purchased for a hammock. Worked great. Gates opened easily but only after carefully twisting the locking collar. The locking feature is more than I think I need but happy to have it.
Hammock, you say? These carabiners are sold for RAPPELLING, so isn't this a bit much? NOT AT ALL!! Think about it. You're relaxing in your hammock--which, in my life, is a rare and precious blink of the eye. Then suddenly you're PLOP on the ground? Or more like CRUNCH--call 911. No thank you! I want a hammock setup that safely holds two people, plus a large dog who suddenly jumps in (or a large child, take your pick).
Happy with these carabiners. They meet my (perceived) needs perfectly.