US$ 16.80
Greatly-enlarged cardiac muscle model exposes myocardial fiber structure
Flexible spine model demonstrates vertebral movement
2mL graduations
02A resolution
Optically Worked Double Concave Glass Lens, 75mm Diameter, 300mm Focal Length Science at Home_Chemical Science Greatly-enlarged cardiac muscle model exposesLong focal double concave glass lens at 75mm diameter and 300mm focal length, the moderate curvature spreading light gently for divergence and virtual image formation work in refraction demos.
US$ 16.80
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US$ 27.49