Not worth it.  I already lost one of these.  Pay more and getter the better one.  These don't stay on the plug very well.  Fit loose.  And then then large loop that connects to the wire that's supposed to be a retainer (when not covering the plug) is also too loose.  Completely fell off a couple times in the driveway before I lost it completely.  So it fails to protect the plug from the elements, therefore fails in its purpose.