Main Functions:Basic positioning, measuring azimuth, deflection angle, it's easy to read data in all weather at any time.excellent for camping, hiking, exploring, and other outdoor activities.Specification:Dimensions: Diameter50x16mm, Weight: 45g.Easy to carry:The compass is medium in size and easy to carry. It is recommended to put it in your pocket, backpack or directly on your neck so that your direction will always be correct.Applicable occasions and people:This compass is waterproof and shockproof, suitable for driving, camping, hiking, so this compass is a good tool for backpackers, campers, hikers, hunters, geologists to do outdoor activities.Copper pocket watch style, outdoor travel compass.Material: Copper shellCategory: Pocket watch styleWaterproof life waterproofCompass diameter: 50mmThickness: 16mmNet weight: 47gnote:The luminous effect means that the phosphor is exposed to natural light, daylight, ultraviolet lightIt will show up after exposure.The longer the continuous lighting and the higher the intensity, the longer the luminous display time will be.There is no luminous effect without exposure!Light it with a flashlight for a while, it will glow in the night!quantity: 1Global Mountaineering,Navigating .