Easy Walk Harness in Small size fits girth measurement of 15-20" The ECO Easy Walk Harness leash connection ring is on the center of the harness chest strap. When your dog pulls on the leash, he or she will be gently guided back towards - naturally discouraging your dog from pulling on the leash. The leash attachment at the chest prevents pressure over your dog�s throat and neck which is especially important for small breeds that are susceptible to tracheal damage. Features unique to the Premier Easy Walk front-attachment dog harness: Chest loop closure helps prevent gapping and shifting and makes the harness more effective in reducing pulling. The complementary color of the belly strap makes it easy to identify each strap. A quick-snap buckle is provided on both the shoulder and belly straps to make it easy to get the harness on and off your dog.