Tetra Gun Bio Gun Cleaner 7 oz. spray is a bio-enzymatic, all-natural detergent cleaning agent that is a safe alternative to tradition gun solvent products. Dissolves and removes carbon fouling, solvent residue and pre-existing lubricant from gunmetal surfaces. Designed to ultimately be a pre-treatment for proper firearm lubrication. Comes in a non-aerosol pressurized spray can which explains why there are no solvents and propellants inside. And it can spray at any angle.