Birchwood Casey Bore Scrubber Foaming Gel -Contains no highly toxic ingredients and is safe for use on steel. Solvent clings to and penetrates neglected or fouled bores. Great for rifles, shotguns and handguns. Safely removes all types of fouling - carbon, powder, copper, lead and plastic wad residueSolvent clings to and penetrates neglected or fouled boresContains no highly toxic ingredients and is safe for use on steel11.5 oz Aerosol can