Color: Orange (such as pictures)Each Weight: about 35gMaterial: ABS plastic / magnet / oil / nylon rope， etc.Dimensions: Diameter about 30mm， Length about 118mm.Features: 25mm diameter damped compass mounted， high-decibel whistle， sealing drugs warehouse， survival mirror， lanyard. Guide (North) needle use:1?Flat Guide (North) pin， rotary guide (North) pin， as long as the turntable stops rotating， look the word on the dial on the line. East and West direction is referred to the Chinese version of East and West. N is the English version of the north， S for the south， E for the East. W West.2?When using the guide (North) pin， Must not have iron in the side， magnets and other items interference Guide (North) needle use; guide (North) pin must be flat.