Take a peek under the skin! Using the photo-illustrated instructions, students assemble this realistic, 31-piece model and gain a hands-on understanding of how organs and systems interact. - Features brain, skull, heart, rib cage, lungs, liver, stomach, pancreas, kidneys, intestines and spine - Includes 31-Piece torso model, display stand and guide with anatomy facts - Stands 4.5"H when assembled - Grades 3+