describe: 1. Press the main part of the flashlight to open and , which is convenient for children and adults to operate, easy to carry and suitable for daily use; 2. LED keychain light UV purple light banknote inspection/blue light/green light/pink light keychain mini turtle light multi-color. 3. Luminous keychains, LED keychains, blue light keychains, keychains, electronic plastic ornaments, small gifts, luminous small gifts. 4. Sturdy, not easy to , the color is not easy to fade, and the quality is good. Product Product size: 41 x 23.5 x 9mm Use battery: 1XCR2032 3V button battery Switch: /toggle Uses: Mini key chain LED key chain key light luggage pendant jewelry : plastic colour: purple/green/pink/blue Package Contents: 20 x LED keychain lights (5 each for purple/green/pink/blue) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.