The 3b scientific vg393 human labor stages model is used for anatomical study, and consists of five models for effective demonstration: fetus in womb, cervix closed fetus in womb, cervix open fetus in womb, start of head passage fetus in womb and pelvis finish of head passage and placenta in the womb. The models are mounted on a baseboard for display, which measures 12.2x15.7x5.1-inch 31.0x40.0x13.0cm (LxWxH). (L is the horizontal distance from left to right w is the horizontal distance from front to back h is the vertical distance from the lowest to highest point.) Anatomical models are typically used as educational aids in medical and scientific classrooms and office settings. Science education products incorporate applied math and science principles into classroom and homeschool-based projects. Teachers in pre-k, elementary, and secondary classrooms use science education kits and products alongside science, technology, engineering, and math (stem) curriculum to demonstrate stem concepts and real-world applications through hands-on activities. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, energy, chemistry, physics, biology, and geology.3b Scientific manufactures anatomical models, simulators, charts, and other training materials for use in scientific, medical, and patient education. Founded in 1948 and headquartered in Hamburg, Germany, 3b scientific meets ISO 9001: 2008 standards.Measures 12.2 X 15.7 X 5.1-inches 31.0 X 40.0 X 13.0cm (L x w x h). Mounted on baseboard for display. Consists of five models for effective demonstration. Human labor stages model for anatomical study.