These collars are excellent! Trainer Nic has used these collars for years when training with clients and they have never let her down. They are a good design, having the material for the whole collar is better than some chain, as it’s nicer on your hands when gripping the collar. Theses collars are also designed so that when fitted properly they cannot slip them, which means there isn’t a risk of losing your dog when out and about and they are pulling or getting strong around another dog walking past. There are different sizes and colours available.