Starmark Pro-Training Collar's patented design enhances communication between you and your dog. This collar provides gentle control and offers a great looking design. 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, or use Add-A-Link to quickly lengthen the collar for a perfect fit. Available in BLUE