The skeleton is provided with muscle painting and, in the fully flexible version, with a flexible spine, nerve / artery cords, herniated disc or hernia. The flexibility allows natural movements and curves of the upper body to be shown. In addition, the sacrum is opened and equipped with a bone flap to illustrate the course of the nerve endings in the sacrum and the entry into the pelvic area. The painting and numbering is done by hand. With description.