Our flashlight is made of metal,although small LED lights but the light source is really bright,but the overall is also very beautiful,using four LR41 button battery,easy to replace,power saving,the outer body use aviation aluminum alloy material, surface anodic oxidation coloring CNC cutting process.Before use,remove the diaphragm,turn the lamp cap tight can shine,when not in use will lamp cap slightly loosen a bit can be closed.Suitable for outdoor night camping and mountaineering.Rush service and Unprinting service is acceptable.