Feature: Material:plastic Color:A-rmyGreen Product Size:6x2.8x2cm/2.36x1.10x0.78in Package size:6x2.8x2cm/2.36x1.10x0.78in Product weight:18g/0.04lb Gross weight:18g/0.04lb Descrition: 3 function: whistle, Water proof thermograph, water proof compass Good plastic whistle and nylon neck lanyard 3-in-1 whistle for camping, hiking, cycling, skiing, any kind of outdoor activities, and can be also for Coaches, Instructors, Sports, Teachers…… You can use your favorite lanyard instead of nylon lanyard. bring no burden to your outdoor sports, with neck lanyard easy to get in any situation, it also can be tied to your backpack, belt and so on. 3 in 1 whistle: a convenient and practical tool for your partner and family. Package Content: 1x Whistle Multifunctional 3-in-1 Whistle, Loud, Green Widely Use: You will get a green plastic whistles. These whistles are great for sports, referees, coaches, training, teachers, survival, emergency, school, gym, , camping, trainers, lifeguards, traffic officers etc Covenient: Each whistle comes with a soft comfortable lanyard, you can hang easily around your neck, or on a wall mount, free your hands Material: Whistle are made of thicken and safe plastic, sturdy and long time for use. small and lightweight Good Service: Our whistles are satisfaction guaranteed. If you have any problem or want batch ordering, please feel free to contact us,we will do our best to serve you