Code blue deer lure enhanced estrus screamin heat 1fl oz. FEATURES:-Keep big bucks coming with pure whitetail doe estrous urine collected from a single doe then enhanced with natural female secretions-1 fl. oz. Other Features: Every code blue 1oz bottle urine is collected from a single deer,certified and labeled w/deer's unique registration number 100% pure estrous urine enhanced w/natural doe secretions,stronger and more effective