With the LED retractable keylight you will never be left in the dark again trying to find the right key.    With the just a push of a button the super bright LED will allow you to find the right key and see all obstacles in your way.  The keylight also has a 10 inch retractable cord with keyring and a handy belt clip.  The keylight requires 2 CR2016 lithium batteries that are included.  The keylight measures in at 3 inches  x 1 and a quarter inches x three-quarters inches.   The LED bulb will never need replacing.  The cover colors may vary from the one pictured.