The craftsmen at Skullduggery have created this seamless skull replica through a proprietary process, and then finished all the details by hand. This human skull model is cast in museum grade professional casting compound, which is stronger than common plaster. It accurately reflects the look and feel of the original bone. It is cast from a mold of a real human male skull, measuring 9" high x 8" deep x 5 1/2" wide. The original was a Caucasian male. The skull and mandible (lower jaw) are separate pieces, designed for ease of study from all angles.