~ADAPTIL Junior calming puppy collar is the effective solution to comfort newly adopted puppies and help them develop into confident, well-adjusted dogs.Comforts puppies throughout the adoption period: crying at night, staying home alone, loud noises.Promotes better learning during training and socialization. Clinically proven, veterinary used and recommended.ADAPTIL Junior helps puppies remain calm and focused during training so they can learn better and develop into confident, well-adjusted adult dogs.Use a new collar every month to ensure continuous support for your puppy during the socialization period and first year of life. Just put the collar around your puppy’s neck and adjust itThen leave the collar on your puppy continuously (except during shampoo).Each collar provides 4 weeks of constant support. Collar fits necks up to 37.5 cm (up to approximately 15 kg).