The Budget Peter/Petra Torso is an outstanding value for teaching the different parts of the human body. It dissects into 13 parts: 2 part head with removable half brain, 2 lungs, heart, liver, intestines, 2 part female genitalia, 2 part male genitalia, and torso on base. Choking hazard: small parts. Not for children under 3 years of age.