Review on Howgo Training Collar for No Pull Leash Walking - Martingale, Limited Cinch, Chain Reaction & Adjustable Choke Collars by Ashley Martinez

You stretch too much. I started with the big one, it fell off after 2 weeks, then I ordered the middle one, same result, stretched to the point of dropping, bought the 3rd small one. He was too small for a dog, so I clamped him in a vise for a week, tightening the vise every day for a week. Finally it fits the dog well, it's a bit tight, but after the first experiences I now think that it will stretch a little more and everything will be fine. I HOPE ! I ended up paying over $60 for all three. So BEWARE, IT WILL STRETCH!