AOZUO 6PCS Emergency Whistles Loud 120dB Double Tube Whistle Aluminum Alloy Safety Whistle Survival Whistles with Keychain for Outdoor Camping Hiking Hunting Boating Backpacking(Red)

Packing List:6pcs Emergency WhistlesSpecifications:Material: Aluminum PlasticColor: Black RedSize:Double Tube Whistle:5.6×1.4cm/2.2×0.55inKey Ring:2.5cm/0.98inFeatures:The double tube design is loud and easy to attract attention very suitable for emergency use not easy to break or crack and can be reused for a long time.