Size: 18*14*21cm/7.1*5.5*8.3in. The use of high-quality PVC production, computer color matching, advanced color painting. The model consists of two-sided parts of the kidney profile. This oversized double-sided kidney model consists of a normal renal anatomy on one side and a lesion profile at the other end. Specific renal lesions include infection, scarring, atrophy, urinary calculi, tumors, polycystic diseases and hypertension