With years of development at a leading animal research university, it has resulted in an all-new technology: Code Blue Standing Estrous. It's the next generation estrous that has been tested and proven to be 63 percent more effective. It is the highest buck response rate ever tested by Code Blue Scents. Standing Estrous is unlike an other scent because it's collected at the precise time a buck tries to breed. She stands, he attempts to breed, we bottle it. Due to the unique process involved, this is a limited availability estrous, but if you're lucky enough to get a bottle, you'll have the most potent estrous available. Standing Estrous is unlike an other scent because it's collected at the precise time a buck tries to breed She stands, he attempts to breed, and it's bottled 1.5 ounce bottle Tested to be 63 percent more effective on a buck's response, Standing Estrous, is the next generation of estrous Due to the unique process involved, this is a limited availability estrous Most potent estrous available