Some people mark brass to keep up with how many times it has been fired and some people mark their brass so they can later identify brass ownership. We designed Brass Stencils that are specially designed for marking ammo. This stencil is fully compatible with our 100 rnd case gauge. Each stencil set comes with 1 colour marker. You can use any permanent marker that only leaves thin layer if color and does not leave any coat of lacquer that may reduce firearm reliability. Brass Stencils are made from stainless steel and are quick to assemble and easy to apply, the solvent resistant plates can be used again and again.