Item Package Dimensions L x W x H:2.87 x 2.72 x 1.85 inches Package Weight:0.1 Kilograms Model Name:Compass Material:Plastic Suggested Users:Unisex-teen Part Number:Te-Compasses-2pc Style:Brass The Survival Compass is an essential piece of equipment for any outdoor adventure, or in case of any emergency. Whether using for hiking, camping, backpacking, or boy scout use, it accurately points you North which in accordance with International Standards. How to use it: 1. Use the compass in a horizontal state, in order to ensure the accuracy of the pointer; 2. To avoid confusion occurs pointer, please maintain a certain distance from the barbed wire, as well as objects containing magnetic; 3. Do not use a compass to beat the object, so as not to affect the measurement accuracy; 4. Keep The disk and the lens clean, do not use a dirty cloth, hand to wipe; 5. Close it when not use, do not place it near ferromagnetic materials, in order to avoid loss of magnetism. About this item Old Fashion Compass: Made of copper, acrylic mirror surface. Retro nostalgic style design, senior gold-plated metal shell, mirror polished surface. Small Compass: Our reliable compass can be used in -20 to 50 harsh environment. Measures 48mm x 13mm that ideal for adults & kids. Luminous Compass: Compass glows in the dark making it easy to read in all weather at any time.External dials and "N" pointers glow in the dark when exposed to sunlight or light. The longer the exposure time is, the longer the luminescence time is. Accurate Compass: Compass scale is very clear with 360-degree rotating bezel, easy to navigate and orient, high sensitivity and stability. Wide Applications: Excellent for hiking, camping and outdoor activities, it can also be used to detect the presence of magnetic fields in watches, musical instruments and other components.