Renewalube Grease features a water resistant formulation that immediately penetrates and forms a long lasting bond to metal. It reduces friction four times better than traditional greases and is a USDA Certified Biobased Product which means it is non-toxic and biodegradable. Size 0.50 oz Type Gun Grease Series Bio Based Grease Material Water-Resistant Formulation Protects Against Heat/Friction/Wear Quantity 1 Eco Friendly Yes Suitable For Firearms