Eyeskey Multifunctional Military Army Aluminum Alloy Sighting Compass Great for Hiking Camping

PORTABLE: This mini-size compass is available for one-hand operation. DURABLE: With aluminium alloy case and aluminium dial plate, this compass is against impact, water and corrosion - can be used for lifetime. WATERPROOF: Waterproof and cold-proof, this compass can be used under -35? and many other different circumstances. CONVENIENT: This compass includes a lanyard and a nylon bag (with a belt loop attachment/can be attached to the belt) -so you'll never drop or lose it! PRECISE: The lensatic function increases the reading accuracy with a lens that magnifies the dial. MEASUREMENT: With in and cm ruler, you could measure distance, like on a map. Caution: keep it away from large iron masses and magnetic fields (fences, cars, power lines, etc.) to get an accurate magnetic north reading.