Features: Brand new and high quality Good Quality Material: The whistle is make from good quality aluminum alloys material, can being used for long timing. Easy to Use and Carry: This aluminum alloys whistle is small and practical, can being hangings on the keyring as ornaments. Loud Whistle: This highly frequency is loud, and the transmissions distance is long, very useful for various emergency situation. Multiple-purpose: Emergency tool aluminum alloys safety whistle for variety of occasion, such us camping, hikings, boatings, hunting. Wide Application: Suitable for adventurers, sports enthusiasts, and trainer, our whistle is a multifunctional tool for signaling and communication. Specifications: Material: Aluminum Alloys Color: Black/Golden/Silver Package Weight: about.30g Size: about.56x15mm/2.20x0.59in Package Includes: 1 Set of Lifesaving Whistle note: Please allow 1-3mm error due to manual measurement. Please make sures you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Thanks!