The most universally used solvent for removing primer, powder, lead and metal fouling - for preventing rust. Quick, super-efficient, safe and easy to use. Flows freely and penetrates rapidly. A favorite with sportsmen throughout the world. Available in various sizes. Anyone who picks up a firearm eventually picks up a bottle of Hoppe'sA(R) No. 9.(TM) Its revolutionary formula was inspired by one soldier, Frank August Hoppe, who, with nine chemicals, made sure his rifle would always perform its best. Since 1903, generations of hunters, shooters and those who defend our nation have trusted Hoppe's innovation to keep their firearms in top working order. Hoppe's gun-care experts continue to pioneer new, more effective ways to clean and maintain firearms.