DURABLE MATERIAL: Made of high quality acrylic material, the navigation compass is sturdy and durable and can be used for a long time; you can take the mountaineering compass with you when you travel GOOD SIZE: The navigation compass measures approximately, small and lightweight, easy to store and carry, make your trip easier with this handy hiking compass Portable Sling: Each scout compass is tied with a durable nylon lanyard, which allows you to easily attach this navigation compass to a backpack, suitcase, vehicle or neck, freeing your hands and worrying about lose theidentification compass. Luminous Demonstration: The travel direction arrow, scale line and magnetic needle (N) of the adventure compass are all designed with luminous markers, which means that they can be easily used evenat night or in low light conditions, providing you with timely guidance. Wide range of applications: The navigation compass is a useful instrument in a backpack or kit and can be used in outdoor activities such as camping, hiking, trekking, mountaineering, orienteering orsome indoor games.