Check the listing for details. Bow Drill Fire Board Cedar and Sotol Hearth Board. Condition: New. Listed at 11.75 USD. Cedar and Sotol Fire Board or Hearth Board Primitive Friction Fire! Hand harvested, hand processed, and hand crafted! Low ignition point! The bow drill is an ancient and primitive method of starting fire without matches or a lighter. It consists of a bearing block or handhold, a spindle, a hearth board or fire board, and a simple bow. It’s a method that applies friction to generate heat. The heat eventually produces an ember in the burnt wood dust. The ember is tiny and fragile. Once it is formed it is carefully placed into a "tinder bundle" where it is carefully nurtured and coaxed into flame. Once the tinder bundle bursts into flame, it is placed into the fuel that has been assembled ready for ignition. These Fire Boards are made from Cedar and Sotol and are processed by hand. Because of their low ignition point, I've found that it's very easy and fast to make an ember with them. With either Cedar or Sotol, prepare for success in creating a coal with the bow drill method. About your Cedar and Sotol Fire Boards:Hand-crafted and sun dried.Low ignition point.Approximately (10" - 12" long) x (about 1.25" - 1.5" wide) x (about 5/8" thick)Some fire boards may be slightly shorter or wider.What you will receive with your purchase:Two (2) cedar and One (1) Sotol fire board. They are burnt-in with a V-notch cutout ready to be used.