3-Part Skull see-thru with brain or 3-part skull see-thru skull without 5-Part brain. The Brain nestles perfectly within either skull , and lifts out for hands-on study. With the See-Thru Skull, you can actually observe the brain in situ within the Transparent Skull. Brain 5 part cast from an actual human Brain and Midsagittally sectioned, the left half can be disassembled into the Frontal and Parietal Lobe, the Temporal and Occipital Lobe, the Encephalic Trunk, and the Cerebellum. Size: 6" x 8" x 6"