A really tiny coin-sized flashlight that will fit invisibly on your keyring and provide an intense beam of light for those fumbly tasks that get less so when you can see what you’re doing. The LED bulb has a life span of 10,000 hours and the switch unit features a lock-on switch for when you need both hands free. Runs on 2 lithium coin cells which are included and replaceable. Amazingly bright for its size. 1.75"x.9"x.25". .25 oz. 6 lumens.