Code Blue Grave Digger Scrape Mate Urine - 12 ozCode Blue Grave Digger Scrape Mate Urine 12 oz. Enhance your hunting experience with the Code Blue Grave Digger Scrape Mate Urine. This 12 oz bottle is specially formulated with soil impregnated with authentic Code Blue buck urine, providing a realistic scent to attract deer. Simply shake it onto scrapes or create your own mock scrapes for effective results. The scent is designed to last up to 30 days, ensuring that you have a reliable attractant