The 3b scientific j13 70x life-size skin block model is used for anatomical study, and presents a three-dimensional view for effective demonstration. The model has differentiated skin layers, and depicts the hair, sebaceous and sweat glands, and receptor, nerve, and vessel structures for detailed examination. The j13 is mounted on baseboard for display, and measures 17.3x9.4x9.1-inch 44.0x24.0x23.0cm (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. What's in the box, 3b scientific j13 skin block model, 70 times full-size, 17.3x9.4x9.1-inch (LxWxH)Instructions.Measures 17.3 X 9.4 X 9.1-inches 44.0 X 24.0 X 23.0cm (L x w x h). Mounted on baseboard for display. Differentiated skin layers for detailed examination. Three-Dimensional view for effective demonstration. 70X life-size human skin block model for anatomical study.