As a baby grows, so does the mother’s protective uterus. This lifelike set of BIOLIKE 2™ models illustrates fetal development at 8, 10, 16, 22, and 40 weeks. Fetal models can be removed for hands-on learning, and the flexible 40-week uterus model allows the demonstration of different fetal positions. Comes with five uterus/fetus models. Carrying bag (item #96522) can be purchased separately and is a perfect fit for these models.