Features: Adopt plastic material, this ruler is durable and lightweight, making it easily to carry and use. Bottom line reads 1:25000meters and 3.3kilometers respectively. The second line reads 3 kilometers at the verification meter and 1:63360meters respectively. Half moon shaped, with an outer edges of 0-6400miles and 0-360degrees. An essential tool for precise measurements in various field, such as engineering, architecture, and DIY projects. Specifications: Material:ABS Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Topographical Map Scale When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it