Nature's Miracle Urine Destroyer 32oz Pour Bottle. Specially formulated urease producing bacteria targets dog urine. Removes yellow stains & residue left behind by urine & spraying. Formula continues to work until all traces of urine and urine odor are eliminated. Odor-Lock technology will begin to trap and eliminate odors on contact. Good size for animals that are incontinent, sick daily, or prone to accidents. Formula will permanently remove yellow stains created by pet urine breakdown ammonia eliminating tough urine odors.