Plastic. This life-sized model shows in detail the complete human skeleton with separate bones: skull, axial skeleton, hyoid bone, ribs, sternum with rib cartilage, upper and lower limbs, sacrum, and coccyx. 
The left hand and foot are on wire, the other set is unattached. Students can disassemble the skull into 3 parts: skullcap, base of skull, and mandible.
Includes the Human Anatomy Manual.