500pcs Outdoor survival whistle training whistle

Product name: aluminum alloy whistle

Weight: about 4G

[Material] Aluminum alloy, double-layer anodizing treatment, not easy to fade

[Color] Random color

[Specification] Length without ring 47mm Diameter 9mm

[Features] Double-layer anodizing treatment, not easy to fade; It is small and solid. When traveling outdoors, it can help you to confirm your position, avoid getting lost, find a companion, etc. It can be hung on the key chain as an ornament; Elegant personality, sharp and loud whistle, aluminum alloy professional outdoor survival whistle, features loud voice