Like the carabineer Neck-Tech Sport, this collar allows for superior influence over your dog through the use of fang-mimicking prongs. It is completely safe and equipped with a screw-fastening Click-lock to prevent accidental opening as well as a quick-release lock. Available in a 19”/ 48 cm size that’s easily adjusted by adding or removing links (sold separately).
It is of good quality and easy to use. no instructions on how to get links out to fit correctly but find a youtube video and it was easy. Also not instructions on how should fit your dog.