yueton 6pcs Colorful Slim and Long Aluminium Whistles with Key Ring, Emergency Survival Whistle Key Chain, Hiking, Camping, Mountaineering Accessory, Dog Training Whistles Slim and long design whistles High quality aluminum material Light weight and portable mini size whistle with key ring, easy to carry Loud whistle, great for sporting events, camping, hiking, boating, outdoor activities Pack of 6, assorted colors