Hoppe's Lube Oil 4 Oz Pump Md: 1004 High-viscosity oil refined to perfection Can be used on firearms, fishing reels and other precision mechanisms Does not harden, gum or become rancid Provides extra long service High-viscosity oil refined to perfection Ideal for firearms, fishing reels, and other precision mechanisms Extra-long lasting; Does not harden, gum or expire Includes one 4 oz. bottle