ITEM NAME:6pcs 3-Frequency Sound Outdoor Survival Whistles Emergency Rescue Kit A#S Product Description Description: Features: 1. New material, corner arc design, ultrasonic welding, loud sound; 2. Good production process without burrs; with 3 holes and each hole sound is different, sweet and tuneful sound when blowing together; 3. It can help you confirm the location to avoid getting lost and look for companions; Specifications: Material: high quality plastic Length: 71mm/2.80" Width: 27mm/1.06" Thickness: 6mm/0.24" Single product weight: 8g Total gross weight: 53g Included: 6 x Survival Whistles.Included: 6 x Survival Whistles. Good production process without burrs; with 3 holes and each hole sound is different, sweet and tuneful sound when blowing together;. New material, corner arc design, ultrasonic welding, loud sound;.