Set of nine individual models mounted on stands show the stages of human development. 1. An embryo 6 days old considerably enlarged.2. Uterus with embryo in 1st month of gestation. 3. Uterus with embryo in 3rd month of gestation.4. Uterus with fetus in 4th month. 5. Uterus with fetus placenta and umbilical cord.6. Uterus with fetus in 5th month pregnancy. 7. Uterus with fetus in 7th month pregnancy.8. Uterus with fetus in 8th month pregnancy. 9. Uterus with fetus in 9th month pregnancy. Each model comes with a stand and a rod for display