The Flexi Click is a very clever innovation in dog leashes. If you and your dog enjoy time on and off the leash while out then the click is a great way to control your dog. Instead of you holding the leash when the dog runs free, the dog holds it on its collar. The retractable short leash winds up into an easy to grab holder attached to the dogs collar. When you want to control your dog simply grad the end and the dog is instantly restrained. Super simple.