I had the same experience as the first reviewer - less than five minutes into the first walk my dog popped off the leash! She weighs 50 lbs and was not even pulling that hard when the clip gave way. We live in a city and she is not car savvy, so it was quite a heart-stopping moment. After getting her home safely, I tested the clip by attaching the collar and pulling it in the direction of the pin - it popped open and released the collar ring with very little pressure! I had this problem with another leash, but (naively) trusted this one because it was from a 'good' manufacturer - never again! This appears to be another cheap, untested 'made in China' product. I will never walk my dog without thoroughly testing a leash again and will probably go back to using a carabiner as an extra reinforcement on all my leash clips. The lesson: when it comes to buying any dog/leash or collar, BUYER BEWARE!