Originally developed in Germany in the early 1900’s to be used on all parts of a soldier’s rifle- leather, metal and wood, Ballistol is safe on leather, wood, plastic and rubber. Use it to preserve your leather products, clean and protect your firearms, lubricate, protect, and polish many more items in and around the shop and home. No ingredients considered as hazardous by OSHA. Contains no known carcinogens. Ballistol Sportsman’s Oil / Multi-Purpose Lube is a far better lubricant than most, if not all, other so-called gun oils. A truly amazing product!