Distance Meter helps quickly calculate the distance between two points on a map. The map measuring tool features a high-quality metal and plastic case, making it strong, durable, rainproof, and long-lasting. Ideal as a gift for outdoor enthusiasts. Suitable for outdoor activities such as camping, hiking, cycling, hunting, and more. The map distance tool is easy to usesimply roll the mini metal wheel across the map, and the pointer displays the exact scale. This map measuring wheel is lightweight for easy portability and includes a mini metal handle for a secure grip. Product material: metal, ABS, acrylic Product weight: 20 grams (net weight), 27 grams (including packaging) Product dimensions: 95 x 45 x 12 mm Package dimensions: 102 x 57 x 13 mm Dial diameter: 40 mm Packing method: PP bag, color box How to use: As the wheel rolls between two points on the map, the measuring pointer rotates and records the value according to the scale. Multiply by the scale coefficient to obtain the actual distance. Compared to straight-line ruler measurements, this tool provides greater accuracy, especially for curved routes. The map distance meter offers a convenient and efficient way to measure mileage and actual distances on maps.