The heir to the original Mini Maglite 2AAA flashlight launched 25 years ago, this newest member of the family features the same classic look and size and the same simple operation ? just twist the head to turn it on, turn it off and focus the beam. Length: 5 in. Barrel diameter: 1/2 in. Head diameter: 3/4 in. Weight with batteries: 1.73oz. Includes 2 AAA alkaline batteries.