[Strong, sturdy, waterproof and shockproof]-Made of aluminum alloy, it can be used in extreme weather conditions. The compass is waterproof and shockproof, so it is suitable for all outdoor activities, such as cars, boating, camping, rock clim, adventure, hunting, etc.[High precision, high stability]-High damping oil bag with floating dial. The compass rotation is very flexible, and the damping oil enhances the stability of the pointer. The built-in level can improve its accuracy and uce errors.[Special design of fluorescent lamp]-After absor enough sunlight, it can still be used in a dark environment and its data can be read.【Multi-function】-(1) Compass. (2) The sight can be accurately positioned. (3) Inch ruler (centimeter ruler on the other side) and measuring wheel allow you to measure the distance between a straight line and a curve on the map. (4) Angle, inclination and distance conversion table on the back panel.Package Included:1 compassThe size is measu manually, and there may be about 5mm error in the real object.