This compass can help you a lot.Made of aluminum alloy, , ultralight, this lightweight compass can give you a reliable and accurate performance.Ultralight and pocket size, convenient to carry.Big and clear scale, can be seen clearly, with better accuracy, can be used for teaching tool.Suitable for camping, hiking, travel, backpacking, clim, cycling, mountaineering, fishing, etc.Outdoor emergency toolSpecification:Material: Aluminum AlloySize (Dia. x H): Approx. 7.5x1cm / 3x0.4 inchPackage Includes:1 Piece Hiking CompassNote:Please allow 3-5mm size deviation.The size is measu manually, and there may be about 5mm error in the real object.