The Triple Crown Collar's patented design enhances communication between you and your dog. This collar provides gentle control and offers a great looking design. Developed by the Training Directors from the World Leader in Pet Education and our international school for professional dog trainers, the StarMark Collar is ideal for teaching basic to advanced obedience for dog owners and trainers alike. The humane design allows you to guide your dog through training with gentle, effective communication in a manner dogs understand. It works well for dogs that constantly pull on the leash and makes obedience training a snap. The link design fits together, producing a watchband pattern that any dog would be proud to wear. This also makes it easy to remove links as needed.