DC Colorful Aluminum Mini LED Flashlight Torch Light Keychain for Hiking Climbing, Pack of 10. Great to hook on your keychain or backpack; Dimension: 15mm x 60mm; 10 x Mini LED Flashlight Touch (Randomly); Waterproof and shock proof design, easy to deal with the wild bad environment; Brand Trademarks: DC , Record Number: 86526328, more details, please check by uspto gov.