100% Aluminum Alloy Material Portable whistles size 5.4cm * 0.9cm, light weight Durable aluminum body survival emergency whistle with key ring. 120db loud enough, Our Extra Loud Whistles can make big and bright sound. Great edc item for sporting events, camping, hiking and boating package includes 12 pieces emergency whistles / 6 different colors Ergonflow is a registered brand. Any questions you have with The Ergonflow Brand Aluminum Whistle EDC Sport Emergency Survival Whistles, please don't hesitate to contact us. THIS IS FOR 12 WHISTLES With key Rings This Aluminum Whistle Key Ring in random assorted colors. Perfect for mountaineers and other outdoor adventurers. Make sure that your emergency survival kit is equipped with this fun colored whistle that with a reliable key ring to keep you from losing this essential item. It is made from durable, waterproof, and rust-proof aluminum for superior durability and efficient functionality.