Hapy Shop 20 Pcs Extra Loud Aluminum Whistles with Key Chain Emergency Whistles for Camping Hiking Hunting Sports and Emergency Situations,Sturdy and Light,Multiple Colors

Key features

• Material:made out of strong aluminium alloy,and the painted surface goes through an oxidation process to prevent it from chipping and rubbing off.
• Size:4.7cm*0.8cm(1.85in*0.3in)Small size but loud that can be heard for far distance.
• Sturdy & Light:The metal is very sturdy but light.Each has a ring so that you can hang a whistle on your keys, your backpack or your gear bag and until you need it.
• Multi-color:each package include 20 pack whistles,but the color is randomly sent,you may receive green, blue, red, purple, silver and gold.
• Not only suitable for emergency situation in camping, hiking, boating and other activities, but also referee, coach, lifeguard, pet dog training, school sports, competition, etc.