Wildlife Research Special Golden Estrus - Super Fresh natural whitetail doe urine with estrus secretions. Originally only available to industry insiders, Special Golden Estrus is the super fresh, premium natural doe urine with estrus secretions that buck's just can't resist. Each high-quality amber glass bottle of Special Golden Estrus is labeled with its own serial number and "Use By" date, so you know it is fresh. In fact, we are so confident that Special Golden Estrus will work for you; we offer a 100% money-back guarantee. If it does not work, send back the bottle and remaining contents for a full refund (not to exceed suggested retail). Originally available exclusively to hunting industry insidersEvery bottle is labeled with its own serial number and "Use By" datePut up in amber glass bottles to protect freshness