The Porta Brace LI-2 LED Snakelight (Set of 2) is a flexible aluminum case light that has a magnetic base or it clips to a pocket inside a bag or any other pocket. The white light with a slight blue tint can be aimed in any direction. To activate the light, remove the switch protector. The light uses 3 LR44 batteries. It is about 6.0" long and weighs about 1.0 oz.