Halti Headcollar simplifies training so walking your dog is a relaxing way to spend quality time with your pet. Easy-fit headcollar applies soft pressure to the bridge of your dog's nose and corrects pulling by redirecting forward dog movement. Improved design of this dog headcollar features an adjustable camlock for a secure and comfortable fit without restricting your dog's natural mouth movements. Includes a training manual so you and your dog can master essential techniques for "Loose Leash Walking." Size 1 applications: border terrier, jack russell, cairn terrier, welsh corgi, standard dachshund, sheltie, westie, whippet and similarly sized dogs. Calms boisterous dogs. Simplifies training. Restrains biters. Reduces fears. Reforms fighters. Assists with restraining dog during veterinarian or grooming visits. Calms hysterical car travelers.