Ages 3+ Science has never been so cuddly! Introduce students to the basic organs and systems of the human body. Unbutton the doll's chest to explore the organs inside the human body. Match the different organs to different body systems. Squeeze the heart, lungs and stomach to hear different sounds! Includes: 1 doll 18" (46 cm) tall, 7 organs approximately 3½" (9 cm) and guide.