The world’s most advanced all-purpose Lifesaver Safety #1 Whistle designed by search and rescue professionalsNewly designed synthetic peas will not absorb moisture or freezeABS plastic will not stick to mouth in cold weather as metal whistles doDouble chambered for multiple pitchesIncludes locking safety clipWaffled textured plastic for improoved holding gripMeets anti-choking standards for childrenLarge tooth-grip for hands free useLip-seal prevents loss of air in extreme cold