Non-Stop Dogwear has developed a safe collar for those dogs that often run free in nature. If the collar gets entangled in an obstacle, the unique design with an elastic component facilitates the release of the dog. In this case, you may lose the collar, but not your dog! The saturated color with double 3M reflective stripes around the collar make it very visible from a distance. The Safe collar comes with an easy-to-access rubber tag. The leash attaches to both D-rings. Once hooked to the leash the collar is locked and works like a normal fixed collar.