This is not only a compass, but also has zoom and functions.The clamshell design and compact size are easy to carry.The outdoor map ruler compass is especially suitable for people who like to explore in outdoor activities.The shell has a hanging hole design, which can be hung on a rope and hung around the neck.It is very convenient to use and can be used as teaching supplies and gifts.specification:Outdoor map ruler compassColour: Black.Material: ABS.Dimensions: 9.6x6.4x2.1 cm/3.78x2.52x0.83 inches.packing list1 *Outdoor map ruler compassnotes:Due to the lighting effect and shooting angle, the product has color differences, please understand.Due to manual measurement, the actual size of the product has a tolerance.This compass provides directional assistance.for Camping, Boating, Geology and Other Outdoor Activities.