Review on Mighty Paw Martingale Dog Collar 2.0: Trainer-Approved Limited Slip Collar with Stainless Steel Chain, Heavy Duty Buckle, and Modified Cinch Collar for Gentle and Effective Pet Training by Michelle Miller

Compared to three other martingale collars for my 16" Shepherd mix. The other two collars were too big even though I ordered the right size according to their sizing chart and one with a black metal buckle on the left has black marks in the white box it came in so I didn't even try collar on my dog. The plastic clasp seems strong enough to last a while. It has a separate hook to hang your dog's tag(s) or attach a leash if you want to bypass the collar's ability to contract. I think it's the goalkeeper.