TANCUDER Survival Safety Whistle--- Good helper for outdoor camping and hiking ✔Loud Sound Special quick airflow design, easy to whistle and make a loud sound. ✔Double Tubes Design Safety whistle can provide up to 120 decibels, crisp and high-decibel sound, enough to be heard at long distance, great for sports referee and in emergency. ✔High-quality Material Made of high-quality aluminum alloy material, which is durable, not easy to fade, and has a long service life. ✔Comes With Key Ring Pocket size and light weight for daily use. With key ring for convenient carrying. ✔Wide Application Keychain whistle is for not only for emergency situation in camping, hiking, hunting, fishing, boating and other outdoor activities, also for dog training, school sports, competition, coach, lifeguard, etc. Specifications Material: Aluminum Alloy Color: Gold & Silver Size: 6*6*1cm/2.3*2.3*0.3inch Weight: 30g Packing Includes: 2 * Whistle ◆Note: Any problems you feel unsatisfied with your purchase, please feel free to contact us. We'll try our best to make it right.