Acrylicc dog prong collar, stainless steel adjustable dog pinch collar, suitable for small, medium and large dogs. How to use: When the dog behaves abnormally, just pull the dog training collar, each paw will naturally disperse the pressure, and the dog will stop the abnormal behavior immediately. Great for dogs and most effective training. Material - Stainless steel chrome plated and nylon material for longer life. size: S - Length 35cm (13.8) and Diameter 2.5mm (0.1) M - Length 50cm (19.7) and Diameter 3.0mm (0.12) L - Length 55cm (21.6) and Diameter 3.5mm (0.16) XL - Length 60cm (23.6) and Diameter 4.0mm (0.18) Package Included: Dog prong training collar x 1 Nylon protective cover x1 Rubber cap x 8 link x 3 Acrylicc uses only materials. A commitment to quality products that make you happy with them. If you are not satisfied for any reason, please contact us, we will provide after-sales service policy, we will help you solve the problem as soon as possible.?Buy Guaranteed?Acrylicc team focuses on pet supplies and is committed to making every second of pets loved by all pet owners! We provide lifetime after sales for each product, if you have any questions about the product, please feel free to contact us, we will help you within 24 hours. ?FIT ALL SIZES?Each link of the dog prong collar can be disassembled (removed) to adjust the entire length to fit your dog's neck, suitable for small, medium and large dogs. We recommend using pliers to add or remove links, and each pack comes with three spare links for adjusting the dog's neck size for a comfortable fit for your dog. ?Easy to put on and take off?This unique dog chain collar features a custom designed quick release buckle for quick and easy opening and closing!. ?SAFE AND COMFORTABLE?This fork collar has a smooth surface and a round head design. Made of sturdy nylon material and high quality stainless steel for durability. Comes with a comfortable extended rubber cap that provides the dog with the necessary training pressure while protecting the sensitive areas of the airway and neck. Soft rubber cap provides extra comfort. ?Dog Training?The dog prong collar can help you teach your dog obedience and basic commands without screaming at the dog or punishing it. You just pull on the training collar and the dog will stop immediately. Training collars are great for training aggressive dogs that are difficult to handle.