educational models ,including all kinds of human models .heart ,ear ,brain, digesting system,skeletons,muscle,etc. This life-sized model opens through the median section and inside details are easily seen.Included are: cortex, medulla, pyramids with papillae, partially open renal pelvis, ureter and blood vessels.On base.Dimensions:150* 100* 220(mm)Weight: 230 g. Kidney & Adrenal Model