This specimen was cast from a real human fetal skull. Estimated to be 17 weeks old, this skull exhibits characteristics of prenatal development. It is an excellent aide when studying human fetal osteological development.nnSpecifications:nn1:1 scalenPolyurethane resin castn1-part skull (jaw glued to cranium)nnSkull Length 3.8 cm (1.5 in.)nnSkull Width 3.2 cm (1.2 in.)nnSkull Height 3.8 cm (1.5 in.)nnProduct of Bone Clones