X-Small size, Chest size 12-16 Inch, Neck size 10-12 Inch, Weight 7-19 LBS The Adjustable Reflective No Pull Effect Dog Harness That Dogs Will Absolutely Love Is Here to Stay. Unlike most harnesses, it is completely adjustable and easy to manage. The Reflective element of design will keep your dog safe even during those early morning walks, or during darker evenings. Using dog collar may cause respiratory problems or even lead to more serious injuries like a collapsed trachea. The anti pull dog harness and leash system is designed so that when a dog is on a leash and it pulls, the dog harness spreads out the pressure preventing choking and hurting the throat. The dog leash and harness system is a premium quality product, the premium quality solution for your best friend, whether it is a pit bull, bulldog, Husky, terrier, Labrador, retriever, German shepherd or any other medium or large dog breed. With Copatchy no choke dog harness, you will keep your pooch safe and comfortable. You get a complete, high quality system, with a reliable pull back handle.