Item has been used once but is in great condition. EXPLORE the organs of the human body and their functions in this 3-D model Easy-to-assemble, richly detailed miniature plastic model This miniature Human Body Model measures 4 1/2 inches in height when assembled 31-piece torso model includes - brain, skull, heart, rib cage, lungs, liver, stomach, pancreas, kidneys, intestines, and spine. Comes with Fact Guide, and photo-illustrated assembly instructions