47-Piece Disarticulated Human Spine Model with Vertebrae and Discs Graduations_100mL 7 geometry pushing the focal

7 geometry pushing the focal point downrange for projection-style real-image formation across long benches

Illustrates liquid-density changes with temperature using a weighted 75mm hollow copper sphere that floats in 15°C water and sinks as the water warms to 30°C

Wax-lined stainless steel dissection tray grips specimen pins during anatomy

and general lab setups

Ten two-dimensional plastic geometric shapes with two each of circles

47-Piece Disarticulated Human Spine Model with Vertebrae and Discs Graduations_100mL 7 geometry pushing the focalLife size disarticulated spine breaks into 47 individual vertebrae and intervertebral discs for chiropractic, orthopedic, and axial skeleton identification teaching.