Usage Tips:Description Map measuring gauge can help you quickly calculate the distance by measuring the distance between two points from the map. This gadget is especially practical when you enter the wild area which has no digital signals or when your phone runs out of power. With it, you will know when you can get your destination. Features - Color: As shown. - Material: Plastic + Metal. - Size: 9.6 x 4.5 x 1.65cm. - This map measurer wheel is lightweight and portable, with a mini metal handle for easy holding. - Map measuring tool is made of quality metal and plastic shell, tough, wear-resistant, rainproof and durable. - Map distance measure tool is easy to use, just put the mini metal wheel on the map and roll it, the pointer would point to the precise scale. - Rangefinders can help you quickly calculate the distance by measuring the distance between two points from the map. - Nice gift for people who are fond of outdoor activities.Good for outdoor uses, camping, hiking, cycling, hunting, etc.Package list: 1 x Map Measurer