SunbowStar 50pcs Mini LED Light Lamp Keychain 5 Colors Parameters: 47 x 30 x11mm (L x W x H), 400g weight Material: It made of high-quality and friendly ABS, it is amazing mini things you get. 2 Modes Flashing: Dual function On/Off switch & pull-push button, it powered by 2 x CR2032 batteries (included, replaceable) 3V Multifunctional Usages: Micro size goes anywhere you go. It is not only as a key chain, but also can be a flashlight when you in the dark. Whats more, many people buy it and playing on different parties, so it is very nice for yourself or present for your friends, families, and other persons. Package50pcs led keychain lights (White Light)