Product Details Preserved pig kidneys give students a chance to explore the anatomy of the central organ of the urinary system. Because of their large size and anatomical similarity to human kidneys, students can: * Locate important internal and external features * Trace the path of wastes and urine through the organ * Relate structure to function Product Features * Triple injected (red arteries, blue systemic veins, and yellow uriniferous tubules) for in-depth study of the urinary system. * Individually packed in a vacuum-sealed bag for easy distribution. * Price listed is for 1 specimen. Carolinas Perfect Solution Carolinas Perfect Solution is a proprietary fixative that produces the safest and highest quality specimens on the market. Perfect Solution specimens are safe and nontoxic, produce no dangerous off-gassing, and require no special disposal. The lifelike color and tissue texture allow students to easily identify structures and learn anatomy.