Shooter's Choice Shotgun and Choke Tube Cleaner-Degreaser is designed specially to remove fouling from barrels, choke tubes and ports. It cleans receiver and trigger assembly, assures an even shot pattern, protects against rust, pitting and corrosion and minimizes malfunctions. Shooter's Choice Shotgun and Choke Tube Cleaner-Degreaser generates a full consistent shot pattern by removing plastic wad fouling, lead shot fouling, powder fouling and carbon build-up in the operating mechanism. Specifications: - Size: 12 oz Aerosol Can.