Bore Tech black powder cleaner is a state-of-the-art, water-based solution designed to meet the high standards of contemporary muzzle loader and In-line rifle black powder enthusiasts. This advanced formula incorporates high-performance surfactants, naturally derived solvents, and rust inhibitors, all meticulously chosen to deliver exceptional cleaning results. Completely barrel secure Free from odor Safe for use Completely biodegradable Ammonia-free Incombustible Dispensing cap with twist open/close mechanism and foam gasket seal HDPE plastic bottle (treated)