1The 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. 2The mandible is fixed with high quality spring, which can make the jaw move naturally. 3The skeletal structure of the skull can be identified by the attached color recognition card. 4Each pair of bones and skeletons is painted with a unique bright color and can be quickly identified by using cards. 5Paired 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: PlasticWeight: 943g / 33.2ozProduct dimension: 8*7*5inPackage list:1 * Human Skull Model1 * Skull Model Identification cardNote:The actual product color may deviate from the photo due to light.There may be a slight deviation in the measurement of product.