【CORRECT TRAINING】---Dog Pinch Collar, Provide necessary training pressure while protecting the airway and neck sensitive area of dogs. No need to scream at a dog or punish it. You only have to pull the training collar and the dog will stop naughty immediately. 【SAFE AND EFFECTVE】--- Dog training collars place even pressure on the neck sides and not on the trachea, prong ends of the dog choke collar are protected by rubber tips that can prevent harm to your dog's neck. 【ADJUSTABLE SIZE】---The perimeter of the dog training collar can be adjusted, suitable for small dogs, medium dogs and large dogs. You can add or remove individual chains on the dog pinch collar to fit your dog's neck as needed. Please adjust with tools such as pliers. 【High-Strength Material】--- Our prong collar is made of high-strength chrome-plated stainless steel recommended by trainers. Prong collars for dogs have a silver coating for links that can provide a stable usage period for your dogs.