Plastic construction, made in the USA or imported. This distance calculator compass with a map measuring wheel is designed for easy and precise map measurements. Simply place the mini metal wheel on your map and roll it along your route; the pointer will indicate the exact distance on the clear scale, allowing for quick and accurate readings without guesswork. Features: Accurate distance measurement: Mini metal wheel provides consistent results, ensuring reliable data for planning routes. Easy to use: Roll the wheel along the map and read the scale instantly, saving time during trip preparation. Durable materials: Built with a sturdy metal wheel and a tough plastic shell, resistant to wear and rain, making it suitable for outdoor conditions. Compact and lightweight: Easy to carry in a pocket or gear bag for onthego use. Ideal applications: Camping trips: Measure trails and plan routes before leaving camp. Hiking adventures: Determine distances between landmarks for efficient navigation. Cycling or hunting expeditions: Prepare accurate travel distances to manage time and resources effectively. This map range finder offers dependable performance in the field, combining practicality and durability to meet the needs of outdoor enthusiasts.