Name: double tube survival whistle
Model: AT6637
Material: stainless steel
Specification: full length 5.7cm, width 1.8cm, thickness 0.8CM
Weight: 25 grams
Decibels: 150 decibels
Package size: 6x2x1CM
Scope of application: outdoor, survival, and other scenes
Color: black, silver
Features: outdoor make a living whistle, blow easily, as high as 150 db. Double hole and double tube design, high quality stainless steel material