1、The detachable skull is firmly secured by a pair of magnets and a series of small nails, which facilitates a great deal of uninterrupted research on the skull. 2、The mandible is fixed with high quality spring, which can make the jaw move naturally. 3、The skeletal structure of the skull can be identified by the attached color recognition card. 4、Each pair of bones and skeletons is painted with a unique bright color and can be quickly identified by using cards. 5、Paired skeletons (such as parietal bones) are recognized as a single color, making it easier to locate in operation. Feature: The skull model itself is based on a three-piece skull, a life-size skull model made of plastic. Unique is that the skull does not have much visible external hardware to fix. The detachable skull is firmly secured by a pair of magnets and a series of small nails, which facilitates a great deal of uninterrupted research on the skull. The mandible is fixed with high quality spring, which can make the jaw move naturally. The skeletal structure of the skull can be identified by the attached color recognition card. Each pair of bones and skeletons is painted with a unique bright color and can be quickly identified by using cards. Paired skeletons (such as parietal bones) are recognized as a single color, making it easier to locate in operation. Specification: Material: Plastic Weight: 943g / 33.2oz Product dimension: 8*7*5in Package list: 1 * Human Skull Model 1 * Skull Model Identification card Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.