Time Release Buck Urine Scrape Scent for Season Long UseCode Blue Grave Digger Scrape Mate Urine is soil impregnated with Code Blue buck urine that you shake onto a scrape or mock scrape. It can be used all season long as a curiosity or infringement scent. The time release scent stays potent for up to 30 days. Soil impregnated buck urine formula Shake on scrape application Use on natural or mock scrapes Works as curiosity or infringement scent Stays potent up to 30 days