Come and see our amazing products. The emergency whistle are made of strong Aluminium alloy with metal key ring,not easy to break or fade.Durable Aluminum body survival emergency whistle with key ring,can make big and bright sound. Great item for sporting events, camping,hiking and boating.We can rush service and the price includes shipping cost to ca, qty for 25k and over by ocean. Pls confirm with us about the packing info, stock color and exact production time before placing your order.