Emergency Whistle 30PC Emergency Whistles with Lanyard Safety Whistles for Kayak Life Jackets Lifeboats Fishing Boats Camping Hiking Hunting

Quantity: 30PcsNote:1.There is 2-3% difference according to manual measurement. Please check the size carefully before you buy the item.2.Please note that slight color difference should be acceptable due to the light and screen.3.( Unit Conversion:1 inch = 2.54 cm,1 cm = 0.39 inch ).

• 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
• 5.Please note that slight color difference should be acceptable due to the light and screen