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

this decade resistance box fits bench circuits that need precise

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.