Come and see our amazing products. Easy to make a clear, loud sound with small cork pea, smooth surface. Wear them hands-free on the braided lanyard, or detach them for easy access and quick pocket storage, wherever you wish to keep it handy. Mini and Compact Design, One side with a hiking compass and the other side with a thermometer, Durable and portable. Whistle suitable for referee, coach, lifeguard, dog training, self-defense, school sports, competition, emergency, ord anyone who needs a safety whistle. Pls confirm with us about the packing info, stock color and exact production time before placing your order.