The Super Charged Scent Killer Autumn Formula Spray from Wildlife Research Center gives you the most powerful weapon against a buck's most powerful defense-his nose! The superior human scent eliminator formula of Scent Killer has been chemically blended with the scent of autumn woods and fields. The Super Charged Scent Killer formula proved to be 99% effective at stopping replicated human odor in testing at Rutgers University. Made for long-term effectiveness and works great against a wide variety of odors. The 24/24 Combo includes a 24-oz. pistol grip field bottle and a 24-oz. easy grip re-filler bottle.