Measures 3 7/8" overall. 2 1/2" black magnesium ferro steel rod. Black rubberized handle with thumb grips and lanyard hole. Sparks of 3000° C make it easy to light a fire in any kind of weather. Yield up to 7,000 strokes. Just pull the specially designed knife back slowly and heavily along with the fire starter. Illuminates even stoves and gas grills. The sparks easily light your barbecue, paper, birch bark or dry grass. Works in rain and snow. Since it has a strong spark, it can also be used as an emergency signal. Use only the back of the knife blade with the fire steel. Never the blade edge! For use with Bushcraft Survival.