Right-Angled Acrylic Refraction Prism, 3.25 x 3.25 x 0.4" Plastic Labware_Plastic Wash Bottles Eye model seated in a

Eye model seated in a bony orbit socket illustrates the protective skull relationship of the eye alongside its internal anatomy in a combined teaching unit

the ferrous reference specimen in the metal density series

Whether you're measuring how hot your fireplace or how warm someone's head is

Hundred-milliamp DC scale on a 315x115mm laminated panel with sealed shunt

Right-Angled Acrylic Refraction Prism, 3.25 x 3.25 x 0.4" Plastic Labware_Plastic Wash Bottles Eye model seated in aPairs 3. 25 by 3. 25 inches with 0. 4 inch thickness on a polished right angled acrylic refraction prism, the 90 45 45 degree faces redirecting light through right angles for TIR demos.