SIZE RIGHT ADJUSTABLE DOG HARNESS adjusts to the perfect fit.  Furthermore, It offers a simple design for easy placement and prevents leashes from entangling dogs. The design of Size Right Adjustable Dog Harness eliminates the frustration of dogs backing out of the harness. Putting it on is easy: Simply place it over your dog’s head and snap the easy snap-lock buckle around your dog’s center. Also, your dog can move freely without becoming entangled in the leash thanks to the swivel o-ring.