EASY TO USE: Simply unscrew the back cover, remove the white insulating sheet, and tighten the lamp cover to activate the flashlight. Note: Do not disassemble the product parts and ensure the back cover is firmly tightened. GENEROUS QUANTITY: With 25 keychain flashlights included, this package offers ample supply for camping, hiking, and biking. Share them with friends, classmates, and family. COMPACT & PORTABLE: Featuring a 1.3 x 1.3 x 6 cm flashlight and a 4.8 x 2.2 cm keychain, this mini LED pocket flashlight is lightweight and small enough to slip into a pocket, backpack, or purse. DURABLE & RELIABLE: Crafted from high-quality metal, these mini LED flashlights are built to last and provide reliable illumination for dark spaces. Their lightweight and tiny design allows for easy attachment to belts or removal when not needed. VERSATILE APPLICATIONS: The keychain design ensures that these compact flashlights are suitable for various occasions such as cycling, hiking, camping, and other outdoor activities, fitting easily in pockets, backpacks.