Perhaps the most universally used solvent since 1903, Hoppes #9 Bore Cleaning Solvent is used for preventing rust and removing powder, lead and metal fouling. Quick, super-efficient, safe and easy to use. Flows freely and penetrates rapidly. A favorite with shooters throughout the world. Leaves a rust preventative coating behind. Safe for use with all rifles, pistols and shotguns.Specifications and Features: Removes primer powder lead and metal fouling Prevents rust 5 oz.