Outdoor Whistle, Double Hole and Double Tube Design, 150 Decibels, with Key Ring, Easy to Carry, Stainless Steel Material
https://www.vogueparade.com/shopping/EN/200378143/1/1005003390775557/outdoor-whistle-double-hole-and-double-tube-design-150-decibels-with-key-ring-easy-to-carry-stainless-steel-material//