This 50 caliber bullet flashlight is made from real 50 cal rounds that were once fired on a military range. They are polished and cleaned for a very sharp look. The flashlight is Streamlight brand which features a 100,000 hour life LED. Battery life lasts 8 hours. Flashlight can be turned on and off by simply twisting the head. Batteries can be easily replaced as well by untwisting the head from the bullet. What makes this product even better is that we can also personalize the flashlight by engraving any words/text onto the bullet! These are great anniversary gifts for men!