This specimen was cast from a real human fetal skull. Estimated to be 34 weeks old, this skull exhibits characteristics of prenatal development. This specimen is an excellent aide when studying human fetal osteological development.nnSpecifications:nn1:1 scalenPolyurethane resin castn2-part skull (separate cranium and jaw)nnSkull Length 8.9 cm (3.5 in.)nnSkull Width 7.6 cm (3 in.)nnSkull Height 7 cm (2.7 in.)nnProduct of Bone ClonesnnPlease be advised that this product is made to order and will require additional lead time. For further information about the availability and turnaround time of this item, please contact our customer service team at 1-800-659-SKULL.