This whistle is safe to keep in place to notify you of your presence during emergencies, disasters, and other disasters.
Lightweight and simple design that can be attached to a name holder or pocket bag clip for a neat fit.
Can be used for a variety of purposes, such as attaching a string or strap, as a self defense or childrens security item.
Capacity: 1
Size: Approx. 0.8 x 1.9 inches (2 x 4.
Material: Spacer/ABS
Caution: This is a whistle that can be used in an emergency. Please refrain from using it any other purpose.
(From Amazon.co.jp)