Human Head Cross-Section Model with Neck and Cranium, Life Size Mechanics_Kinematics Optically-worked glass double convex lens

Optically-worked glass double convex lens with a 150mm focal length and 1

Square-section aluminum tube 1 meter long with side graduations and four sliding riders

letting students directly observe pressure-volume changes under stacked weights

this universal clamp holder accepts rods up to 20 mm in diameter and bolts securely to retort stands for oversized load support

Human Head Cross-Section Model with Neck and Cranium, Life Size Mechanics_Kinematics Optically-worked glass double convex lensLife size head cross section exposes cranial vault, brain, facial sinuses, oral cavity, and cervical spine for head and neck anatomy teaching.