Each part on the skull is numbered. Jaw is spring loaded. Skull cap is removable for further interior inspection. Included with the model is a sheet with each numbers name for identification.
Graduated Cylinder, Material: Polypropylene, Industrial, Octagonal Bases for stable use, US Sourced Plastic, Autoclavable polypropylene plastic allows for easy cleaning and sterilization, Class B tolerances, Calibrated to contain, manufactured with the highest grade, Size: 500ml