PetSafe Large Black Gentle Leader Headcollar is a reliable accessory that keeps your furry friend safe and comfortable during your adventures. This innovative headcollar is designed to prevent uncomfortable pulling and leash tension by applying gentle pressure at the back of your dog's neck, ensuring comfort without choking or discomfort. Unlike traditional collars, it is not a muzzle, allowing your dog to ly open its mouth to eat, drink, pant, play fetch, and even bark while wearing it. Suitable for dogs 8 weeks and older, it can be worn for extended periods, up to 18 hours a day. The product comes with user-friendly instructions, a comprehensive training guide, and an informative training DVD, making it easier than ever to help your dog become a better walker. Model Number: