Dolphin Sound Outdoor Survival Whistle 4 Colors Diving Football Tool Outdoor Tool

Label:Yes Brand new with high quality Weight: 11 grams Material: PP plastic Size: 72*20*15mm Lanyard opening: suitable for ropes within 4mm/0.16in Color: Black Red Orange Green Yellow Quantity: 1pc After testing, the performance is very outstanding. We strongly recommend it! 1. Dual band design. The left and right sides have different sizes of sound chambers, which simultaneously produce high and low frequency sound, ensuring penetration in different environments and conditions. 2. Whistle anti slip design. You don't need to hold it with your hands, and you don't have to worry about the airflow blowing the whistle out. 3. It's effortless to make a sound. When seeking survival or help, pay attention to preserving your physical strength. A good survival whistle can easily make a sound. Some products on the market may sound loud, but they are not easy to produce sound. 4. Integrated design, sturdy and reliable. Package Include: 1pc Outdoor Survival Whistle Camping Hiking Rescue Emergency Whistle Notice: 1.Transition: 1cm=10mm=0.39inch. 2.Please allow 1-2mm error due to manual measurement and make sure you do not mind before ordering. 3.Please understand that colors may exist chromatic aberration as the different placement of pictures.