The Deer Clip is specially designed to allow you to clip the Deer Cage securely together in seconds.  Then, if and when you need to open it (to move it to another tree or shrub, or to mow, or to fertilize, for instance), you can open it again just as easily.  The Deer Clip stays on the Cage--no loose parts!  This is one of the great advantages of the Deer Cage over do-it-yourself cages, which are generally fixed in place once installed.  Plus, it's UV-resistant and weather-tested.