US$ 86.62
squared at both ends for benchtop stability
Drops the focal length to 10cm on a 60mm aperture in alternate-model framing
the pyloric sphincter
two acrylic triangular blocks
Interior of the Earth Teaching Model archive-pending squared at both ends forAnnotated cross section model of Earth showing crust, mantle, outer core, and inner core on a wall mountable backboard, with each layer individually labeled.
US$ 86.62
US$ 65.93
US$ 150.56
US$ 52.03
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US$ 132.25
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