Use: This model is suitable for universities and colleges in teaching physiological health and basic histology courses as a visual teaching aid, so that students have a more complete knowledge and understanding of the kidney, renal unit mode, structure. Kidney Model (right kidney): frontal section, showing the renal portal, renal artery, renal vein, renal cortex, renal medulla, renal papilla, renal calyces, renal calyces, renal monomer and other structures. Renal Unit: showing a renal corpuscle, a renal tubule connecting to the corpuscle, a section of collecting duct, and an interlobular network of arterioles and capillaries surrounding the tubule. Model of a Renal Corpuscle: shows a renal capsule, a renal capsule lumen, an outgoing bulbous artery, an incoming bulbous artery, a glomerulus, a vascular pole, and a urinary plate. The glomerulus shows the capillary ball formed by dozens of capillaries twisting and coiling