Features: This is not just a compass, it also has a scale and mirror function. The shell design and small size make it easy to transport. Outdoor map compass ruler is especially suitable for people who like to explore in outdoor activities. The shield has a hanging hole design, you can put it on a rope to hang it around your neck, which is very convenient to use. Contact us if you have questions,we will try our best to serve for you. Package Includes: 1 Pcs compass ruler outdoor map. Specifications: Outdoor compass ruler map -Color: Black. Material: acrylic. -Size: 12x7x3cm Type: 1. north, bearing, positioning 2. ranging, slope measurement, azimuth measurement 3. step angle measurement, measuring ruler, scale ruler 4. measuring ruler, drawing note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!