Application：Suitable for anyone interested in anatomy, nursing, physiology. Understand the various organs of the human body and their relative positions. Very suitable for children's education, perfect gift for children. ? The structure testicular model shows the internal structure of the testes, as the output tubules, the white membrane, the lumen of the sheath, the visceral stenosis, the seminiferous tubules, the vas deferens, the vas deferens etc. ? The model takes a magnification of 3.5 times the design of the normal male testes, showing the inner side of the testicle and the sagittale.Size: 27 * 11 * 11cm ? The model is a kind of reproductive science, a rare product for male teaching. ? Detailed enough to satisfy students, doctors or anyone interested in the human body.