THIS 2-IN-1 SOLVENT DOES IT ALL! ATTACKS, DISSOLVES AND REMOVES ALL TYPES OF BARREL FOULING INCLUDING: LEAD, COPPER, PLASTIC, CARBON AND POWDER FOULING. SUPERIOR RUST PREVENTIVE ADDITIVES PROVIDE LONG-TERM PROTECTION AFTER CLEANING. CONTAINS NO NITROBENZENE, BUTYL CELLOSOLVE OR OTHER HIGHLY TOXIC INGREDIENTS. SAFE, FAST AND EASY TO USE.