Master-Pull
Supporting Sponsor
My dog is about 110 lbs. Not huge, but big enough. The standard latch / clip things on most leashes work fine. That one just looks like one of those cheap aluminum fake caribiners that would pull apart. If it is strong then I'm sure it would work fine.
We have the strength ratings on those somewhere but we are using a new end now, I will see if I can get a picture of those soon.
-Alex