Detailed model of the stages of pregnancy makes a great teaching and demonstration model, and is ideal for students, teachers, and medical professionals Set of 8 models show the stages of fetal development Accurate depicts first month embryo, second month embryo, third month embryo, fourth month fetus (transverse lie), fifth month fetus (breach position), fifth month fetus (transverse lie), fifth month twin fetuses (normal position), and seventh month fetus (normal position) Constructed from durable PVC Each model is mounted on its own base, allowing easy handling for closer study