The 3b scientific k13 human kidney model displays a microscopic view of renal structural and functional features. The model has six magnified sections to allow for detailed examination of the kidney's fine tissue structures used in urine production: longitudinal section of a kidney section of renal cortex and renal medulla of a kidney wedge-shaped section of a kidney lobe, with three nephrons with Henle's loops of different lengths, and vascular supply kidney nephron, with a short Henle's loop, and vascular supply open kidney renal corpuscle, with nephron and light-microscopic transverse sections of the proximal, attenuated, and distal segments of a renal tubule and opened kidney renal corpuscle. The k13 is mounted on a base for display, and is made of polyvinyl chloride (PVC) plastic, which is corrosion resistant, lightweight, and has high strength. PVC resists reactions with acids, gasoline, alcohol, and hydrocarbons. Anatomical models are typically used as educational aids in medical and scientific classrooms and office settings. The model measures 7.5x9.3x10.0-inch 19.0x23.5x25.5cm (LxWxH). (L is the horizontal distance from left to right w is the horizontal distance from front to back h is the vertical distance from the lowest to highest point.) P Science education products incorporate applied math and science principles into classroom and homeschool-based projects. Teachers in pre-k, elementary, and secondary classrooms use science education kits and products alongside science, technology, engineering, and math (stem) curriculum to demonstrate stem concepts and real-world applications through hands-on activities. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, energy, chemistry, physics, biology, and geology.3b Scientific manufactures anatomical models, simulators, charts, and other training materials for use in scientific, medical, and patient education.Measures 7.5 X 9.3 X 10.0-inches 19.0 X 23.5 X 25.5cm (L x w x h). Made of durable polyvinyl chloride (PVC) plastic for resistance to corrosion. Mounted on base for display. Six magnified sections for detailed examination of fine tissue structures used in urinary production. Human kidney model for microscopic study of renal structural and functional features.