Made of 100% recycled plastic milk cartons * Discourages dogs from pulling while walking on a leash; The leash attachment is located at the chest, so if your dog pulls forward, he is automatically steered to the side; No coughing, gagging or choking; 4 adjustment points provide maximum comfort and a * For medium/large size breeds such as Border Collies and Retrievers; Girth adjusts from 25 to 35 inches * Comes with a matching 6 foot leash. * Complementary color belly strap makes it easy to identify each strap * -made of 100% recycled Plastic Milk Cartons * Durable Brushed nickel hardware * No coughing, gagging or choking * Soft, but strong nylon and four adjustment points provide maximum comfort and a reliable fit.