Cetacea was one of the first companies to introduce the Step-in Harness to the pet industry. Now its an Industry Standard and the preferred harness design. The Step in Harness concept is simple - "Pet Simply Steps In" and it buckles securely near the dogs back. The design catches the dog low across the chess to disperse the load and keep your dog from experiencing damage to the trachea from other pulling. Two Solid brass D-rings provide a very secure attachment point for the leash. Unlike a traditional H shaped harness the Step In does not have to be pulled over the dogs head (They Don't Like That). The Harness is adjustable in locations to fit practically any sized dog. If you have a dog with unique dimensions we can custom build per your request.