Feature - Color: As shown. - Material: Zinc alloy. - Size: About 9.8 x 6.3 x 3.3 cm. - Sturdy shell can protect the compass well, give it more longer service life. - Impressive and unique gift for your loved one and for various occasions. - The detailed instruction book can teach you how to use it. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand How to Use 1. Place the compass or hold it in a horizontal state to ensure accurate readings. (Do not put Placed on an iron table and other places that affect magnetism. ) 2, in order to avoid the confusion of the pointer, please keep away from objects containing magnetic and current, and Some metal products (such as high-voltage lines, mobile phones, stereos, screwdrivers, magnets, etc.). 3. Do not tap or shoot the compass with your hand, so as not to affect the measurement accuracy. 4. Do not place the compass for a long time under the sun. (If the temperature is too high or too low, it will affect the finger South needle life 5. Keep the outer casing and mirror clean, do not wipe with dirty cloth or alcohol. 6. When not in use, please place the compass in a clean, cool place, away from magnetic substances, avoiding Do not consume pointer magnetic.