Durable Material: These safety whistles are made of super durable ABS plastic, which has strong impact resistance to ensure durability and water and moisture resistance.The high-quality whistle can not only be used for camping, hiking, backpacking, hunting, archery, fishing, swimming,boating, kayaking, marine sports events and any other outdoor activities, but also for dog training. Pealess Design: The signaling whistle adopts pealess design, which means that no moving parts get stuck, broken or frozen to block sounds. The whistle works well in any conditions due to its excellent airflow design. It also has comfortable mouth grip that guarantees no sticking to lips like metal ones in cold environments. Flexible Use: The safety whistle comes with adjustable reflective lanyards and clips for high visibility even in the dark.You can tie lanyard on backpacks, sailboats, camping hiking gear, life jackets, kayak PFDs, paddles board, bicycle or fasten the clip on your waist belt or shoulder strap for quick and easy use in an emergency. Product Quantity: 5 Piece Product color: orange Product size: length 2cm width 0.6cm height 7.5cm