Emergency Double Tubes Metal Whistle Keychain

Double tube metal whistle is extremely loud and easy to blow, strong and durable, can be heard for far distance, also suitable for referee and coaches. Loud safety with keychain for climbing, hiking, camping, fishing, boating. This survival lifeguard whistle can used as pet whistle, ref whistles, toy whistle, camp whistle and gym whistle. Suitable for outdoor activities and sports.