Silbato de emergencia portátil EDC de una sola pieza de cobre puro, de latón de alto decibelio, creativo, tallado, con sonido explosivo

Brass High-Pitched Whistle Carefully crafted from brass material, it has a strong texture, high quality, and elegant taste. It can be used normally regardless of water ingress or any adverse conditions. The reasonable design of the holes allows external gases to flow smoothly, thereby increasing the volume decibels, making you more charismatic and attracting attention.The quality is very sturdy and durable. Commonly used for outdoor distress calls, earthquake relief, competition queueing, high decibel blast sound up to 120-130 decibels, compact and lightweight, easy to carry 2 New Whistle Models, GLB Flat Double Tube Loud Brass Whistle Up to 120-130 Decibels, CH Precision Carved Integrated Brass Life-Saving Whistle Up to 100-110 Decibels Note: The option with 20 flat rings is pure copper flat rings, diameter 20MM The connecting copper rings in the package are not specified in size and are sent randomly.It was not assembled when shipped; you can assemble it yourself upon receipt.Please understand~ GLB Flat Double Tube Loud Brass Whistle JCH Precision Carved Integrated High Decibel Brass Life-saving Whistle