Check the listing for details. Hickory Fire Pistons Fire Starter Survival FREE SHIPPING*. Condition: New. Listed at 27.75 USD. HICKORY CAMPFIREPISTON FIRE PISTON READ THIS FIRST IF YOU SEE A ONE OF MY FIRE PISTON LISTING HERE ON EBAY AND ITS NOT SOLD BY CAMPFIREPISTON IT IS A FAKE ALL THE PHOTOS IN MY LISTING ARE MINE TAKEN BY ME THESE OTHER LISTINGS ARE USING MY PHOTOS ******************** A fire piston consists of a hollow cylinder ranging in length from about 3 to 6 inches sealed at one end and open at the other. A piston with an airtight circular seal ( o-ring) is fitted into the cylinder. The piston has a handle on the end to allow a firm grip to be applied to it, or a large enough surface area to strike it sharply without causing pain while the cylinder is braced against a hard surface, and it can be completely withdrawn from the cylinder. The. piston generally has a notch or recess on or in its face, into which a piece char cloth is placed. The compression of the air when the piston is quickly rammed into the cylinder causes the interior temperature to rise sharply to 500°F This is hot enough for the char cloth in the piston face to ignite with a visible flash that can be seen if the cylinder is made of translucent or transparent material. The piston is then quickly withdrawn, before the now-burning tinder depletes the available oxygen inside the cylinder. The smoldering char cloth can then be removed from the face of the piston and transferred to a larger nest of fine kindling material, such as Jute Twine, Paper Towel, birch shavings, etc. The ember is then fanned or blown upon vigorously to create a flame, at which time various stages of larger kindling can be added until built into a proper fire. *******Click Here To See Our 5 Fire Piston Pack****** INFO Inches OVERALL LENGHT 4 3/4 120 mm DIAMETER 7/8 22 MM WEIGHT 2 oz 57 Gram What you get Fire Piston Bag of Char Cloth EXTRA O-RINGS Instructions How to use the Fire Piston Instructions How to make Char Cloth. Excellent Customer Service. *FREE SHIPPING USA ONLY. THANK YOU FOR LOOKING MESSAGE ME IF YOU HAVE ANY QUESTONS