Casstrom Fire Striker Curly Birch. A firestriker steel is an essential component of any bushcraft or survival kit and this firestriker comes with real character. Quality all-weather firestriker steel 12000+ strikes The exposed steel is approx. 6 cm or 2.35" and 9.5mm in diameter (full army size) The total length approx. 13cm Handle made from curly birch wood A reindeer leather string/lanyard is looped through a hole in the handle Specifications for Casstrom Fire Striker: Manufacturer: Casstrom Blade Material: Steel Package Contents: Casstrom Fire Striker Casstrom 12203: Fire Striker Curly Birch