Millions of dog owners now enjoy the benefits of stress-free walks thanks to the Gentle Leader Headcollar. Developed by a professional animal behaviorist and veterinarian, the Gentle Leader provides immediate control by effectively removing a dog s natural tendency to pull. By applying light pressure to the back of the neck and bridge of the snout, the Gentle Leader sends a message dogs instinctively understand. It stops pulling and lunging; and controls jumping and barking without choking the dog. Dogs can comfortably eat, drink and pant. Durable nylon collar can be adjusted for a custom fit. Positive no pain option. For dogs weighing 60-100lbs.