BSE - Whistle - 5-in-1, Compass, Lanyard, And Compass - CCH5-1 ReviewbP PP SE - Whistle - 5-in-1, Compass, Lanyard, And Compass - CCH5-1 P5-IN-1 Functions: Safety Whistle, Liquid Filled Compass, Signaling Mirror, Waterproof Storage Container, Flint Sparking RodPLength: 4-12in.PCompass Dia: 1in.