Heavy-duty, stable-emulsion multi-use spray cleaner designed to thoroughly clean chains Doesn’t harm the finish on gold chains, standard chains, aluminum or steel Safe for O, X and Z-ring chains Won't harm rubber O-rings or metal surfaces Quickly dissolves and removes hard-to-clean buildup Spray on, let sit for a few minutes and hose off with a hard stream of water Made in the U.S.A. May cause some painted surfaces to discolor. Do not use on plastic or Lexan® windshields.