Silicon Tubing, 4 x 1mm Science at Home_Math Life-size head cross-section exposes cranial

Life-size head cross-section exposes cranial vault

combining a 4-inch inner diameter and a rod grip from 5/16 to 5/8 inch for holding wire gauze and vessels over heat

a wide 150mm concave glass mirror at 150mm focal length runs at f/1

One hundred numbered slots in a hardwood storage box hold standard microscope slides for ordered reference and classroom slide-library organization

Silicon Tubing, 4 x 1mm Science at Home_Math Life-size head cross-section exposes cranialSmooth bore silicon rubber tubing measuring 4 mm outer by 1 mm inner, flexible for tight routing and autoclavable for reuse across laboratory fluid transfer applications.