It's part of the Super Charged line-up of virtually irresistible hunting scent because the Wildlife Research Center Golden Estrus Elk Hunting Scent Aerosol Spray is made of cow elk urine with the highest levels of heat secretions and this drives the bulls wild! Plus, this formula is amped up even higher with Scent Reflex technology for better scent coverage, stronger reactions, and better hunting results. Ultimately, the Golden Estrus Elk Hunting Scent Aerosol Spray from Wildlife Research Center signals to the bull elks that there's a mature cow elk in the area, and this scent is your best advantage when those big bulls are in the rut and bugling. Comes in a 3-oz. spray, which makes formula easy to apply. Easy-spraying elk lure that's virtually irresistible Made of cow elk urine with the highest levels of heat secretions Scent Reflex for better scent coverage, stronger reactions Works best when bulls are in the rut and bugling