Emergency Whistle 30Pcs Dolphin Sound Outdoor Survival 4 Colors Diving Football Tool(Orange)

Material: PP plasticColor: Black Red Orange Green YellowSize: 72*20*15mmLanyard opening: suitable for ropes within 4mm/0.16inQuantity: 30pcAfter testing, the performance is very outstanding. We strongly recommend it!Package Include:30pc Outdoor Survival Whistle Camping Hiking 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.

• Whistle 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
• 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
• Integrated design, sturdy and reliable
• 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
• Also clip the whistle to your belt or shoulder straps for quick and easy use in case of emergency.