With a Size Right dog harness you will be able to keep your dog under control much more than when compared to a dog collar. It has a loop that goes around the base of the neck and one loop that buckles at the chest of the dog. Having two separate loops allows the pressure from the neck to be displaced to the girth. This can prevent your dog from choking or being uncomfortable like he would from a regular dog collar. This nylon dog harness will fit dogs who have a girth measuring 24" to 30". The straps are 3/4" wide.