Survival Res-Q(TM) Whistle w/18 LanyardFeatures:Gets attention!Loud, shrill, dual tone audible from great distanceUnique flat design prevents holding waterRequired by SOLAS 8318 lanyard includedMeets USCG/SOLAS requirementsAids in land or sea rescuesUse on life jackets, vests, foul weather gear, ring buoys, rafts, key chains, etc.Developed for the U.S. Navy; used by NASA, major airlines and shipping companiesComplete with 18 (45.5 cm) of lanyard