This tool kit will get your flintlock firing. The screw driver, vent pick and knapping hammer is hand forged, the pan brush bristles appear to be made of nylon. The knapping hammer head is made of 1/2" brass. All 4 pieces are held together on a ring. The screw driver measures about 3" long vent pick 3" long and knapping hammer measures 4" long. This is a great set of tools to store in your shooting bag to keep your flint knapped,your pan clean, the touch hole clean and screw driver to replace your flints. These are handmade by an American blacksmith.