10 Pcs Gold and Silver Emergency Whistle

1. Super loud: double tubes whistle has a loud sound and is easy to blow. The sound power provides up to 120 decibels, enough to be heard from a long distance.2. Premium quality: made of aluminum alloy material, sturdy and durable. Brushed metal texture.3. Personalized engraving: you can use laser engraving or CNC to engrave anyone's name, pattern Logo, or ""go hiking"" any words that do not exceed the engraving area;4. Gift giving: suitable for friends who like hiking, climbing and outdoors, for dad, for grandchildren, mother's day, father's day or other festivals; Easy to carry: comes with a key chain and lanyard so it can be attached to a backpack, belt or hung around your neck. 5. Multipurpose: the emergency survival whistle is suitable for outdoor activities, such as hiking, fishing, camping, boating, hunting, and can also be used for lifeguards, pet dog training, etc. Specifications: Product material: Aluminum alloy Product size: Length 55mm x width 15mm x thickness 8mm Packing l