It is useful for outdoor travel.

Features:
Made from magnesium and iron， water resistant and durable to use.
Only consists two simple parts， but it owns multi-function.
It can be used as a whistle for emergency.
With a black lanyard， easy to carry.
Applicable at anywhere， anytime and any condition， including moist weather or low temperature.
Simplicity of operation.
High quality， can be used for thousands of times.

Specifications:
Material: ABS & Magnesium & Iron
Color: Red
Item Size（L * W): 8 * 0.5cm / 3.15 * 0.20in
Stone Length: 4cm / 1.57in
Item Weight: 20g / 0.71oz
Package Size: 11.5 * 8.5 * 1cm / 4.53 * 3.35 * 0.39in
Package Weight: 21g / 0.75oz

Package List:
1 * Flint Fire Maker