Tetra's 4-in-1 Cleaning Pack Contains Everything Shooters Need to Clean, Lubricate & Protect Their Firearms The complete chemical cleaning set for the firearm enthusiast is available in a convenient and attractive clamshell package. Typically, Tetra® Gun Grease is meant for high-wear moving parts such as semi-auto pistol rails and bolt actions, as it stays in place. Tetra® Lubricant has a lower viscosity, and is more of an all-purpose lubricant that can be used anywhere you need lubrication, even in the tightest, hardest-to-reach parts. Cleaning Pack Contains: Tetra® Gun Copper Solvent Quickly Removes All Contaminants from Firearm Barrels • Use as the first step in bore conditioning • Fast-acting, extra-strength formula • Won’t ‘etch’ the barrel • Removes: copper, lead, plastic, carbon & dirt Proven effective in dissolving copper fouling Spray Lubricant and Liquid Lubricant • Unlike many traditional gun care products, Tetra® lubricants and cleaners do not contain petroleum products, which are the leading cause of gumming up, which leads to jams. Tetra Gun Grease • Tetra® Gun Grease is a unique synthetic lubricant formula. Grease is a “Fluoropolymer Penetrating Heavy-Duty Grease Lubricant.” Grease does not contain lithium. You can see editor Marcus O'Dean demonstrating rifle cleaning in this video.