Fluorescent light with special design. You can use it and read the data on it in a dark environment after absorbing enough sunlight. It can be used for positioning, map orienting, plotting and so on. Suitable for automotive, sailing, camping, mountaineering, exploring, and other outdoor activities. With the help of a bubble level, which can improve its accuracy and reduce errors. Specially designed compass with liquid suppression. Made of high-strength metal and coated with military camouflage paint. With a cm and an inch ruler on each side of the compass. Limited by lanyard for easy to carry. Comes with a carrying bag, which is good for convenient carrying and can protect your compass. Compact size and light weight, easy to handle and carry. Specification: Material: Metal + Glass Color: Camouflage Color Dial Diameter: 55mm / 2.17in Size: App. 65x53x2 6mm/2.56x2.09x1.02in Luminous Intensity: YesShockproof: YesCarrying Methods: ManualDisplay Mode: CompassFunction Introduction: Basic Positioning, Map Positioning, Azimuth Measurement, Yaw Direction, Object Width Measurement, etc. Quantity: 1 SetNote: Transition: 1cm=10mm=0.39 inchNo retail package. Please allow 1-3cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between the different