Sam is a full-size classis skeleton with fully flexible vertebral column, hand-painted muscle origins and insertions, numbered bones, flexible joint ligaments, and an L3-L4 disc prolapse. Over 600 structures of medical/anatomical interest are identified. Used in hospitals, schools, universities, and laboratories. The skeleton is ideal for active use in teaching and demonstrations. The skeleton is waist mounted on a roller stand. 67" and 17 lb. Features 3-part skull, removable arms and legs, natural cast.