US$ 13.99
000 specific gravity at 0
3 geometry favoring strong convergence and bright real-image formation across a wide aperture
5-inch optical lens set with three double-convex and three double-concave lenses at 200mm
Pole-gap geometry on this 5
Designed for physics and educational uses
Upper Triple Root Molar Model with Interchangeable Cavities, 6-Part engine models 000 specific gravity at 0Interchangeable cavity inserts swap into a single molar body to illustrate progressive decay stages, supporting dental hygiene and caries prevention teaching.
US$ 13.99
US$ 13.99
US$ 130.00
US$ 115.00
US$ 1000.00
US$ 19.99
US$ 217.50