A hard working cleaner specially formulated to clean black powder substitutes including the popular Triple Seven powder. No brushing or scrubbing required. Simply drop your breech plug in the handy container and shake for 30 seconds and then wipe clean. This cleaner thoroughly penetrates and cleans the flash hole of your breech plug for improved ignition. Notice for California consumers: WARNING: Cancer www.P65Warnings.ca.gov Technical Specifications T17Â Products are specially formulated for use in cleaning away fouling from PyrodexÂ, Blackhorn 209Â & Triple SevenÂ