Durable Construction: 4 pack pen flashlights are made of anodized machined aviation aluminum, which makes them not wear out over time and can withstand drops and bumps. Perfect for working, repairing, camping, emergency survival, mechanics, nurses, doctors, and outdoor sports Super Bright: Each pen light is equipped with 1 super bright LED and can last up to two hours with only two alkaline batteries (battery included), please remove the red insulating sheet before use. Lights up your paths and small dark spaces for a long time Lightweight Portable: Only 30g/1.05 oz of each flashlight, makes this small pocket bright flashlight can be easily put into your pocket or bag, convenient to take around Elastic Rubber Switch Metal Clip: The rubber switch increases thrust, prevents lighting in bags or pockets, and avoids false lighting. The pocket flashlight comes with a clip that easily clips to belts, notebooks, shirt pockets, and jeans pockets, freeing your hands when working or repairing What You Get: High quality 4 pen light flashlight (battery included) and after-sales service. If you encounter any questions or issues, we will be happy to serve you