Dark Earth brown Cerakote coated Aluminum Glow Fob from TEC Accessories. Aircraft Grade Aluminum body with green glow embrite filled clear acrylic tube. Light exposure charges the embrite, which can glow for up to 12 hours and is twice as brite as the original resin. Attach to your keychain, zipper pull or even a flashlight to make locating things in the dark easier. Includes a 7/16" diameter split ring for attachment.