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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Convenient to Use: Diameter of stainless steel thimbles: 5mm/3/16 inch
protect environment
74inch（1set=2pcs*38
pretend people are running
-With metal hanging buckle
Hand Crank Siren Horn 110db Manual Operated Metal Alarm Air Raid Emergency Hand Convenient to Use: Diameter ofHand Crank Siren Horn 110db Manual Operated Metal Alarm Air Raid Emergency Hand It is used for emergency warning and easy to carry. Can be used for factories, families, schools, flood control, disaster relief,public and industrial occasions Timely warning, reduce the loss of people 's property and casualties. By manually rotating the handle, the gearbox of the transmission step by step acceleration to achieve the purpose of sound, the sound depends on
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