4 different colors, give you more choices in daily life, you can choose the color according to your daily outfit and moods. Made of quality aluminum alloy, durable and sturdy, the inner batteries are installed, good workmanship ensures it can last for a long time use. Firstly unscrew the flashlight and take out the inside small round slices before using, then press the top button to turn on and off the mini flashlight, convenient to use and easy to carry