Eisco Labs Glass Rectangular Block; 125mm X 65mm X 18mm Size
Eisco Labs Glass Rectangular Block; 125mm X 65mm X 18mm Size
$19.99
Check on amazon

Glass Rectangular Block 125mm X 65mm X 18mm Size Solid Glass Block Index of refraction plate

Glass Rectangular Block 125mm X 65mm X 18mm Size Solid Glass Block Index of refraction plate The glass rectangular block is ideal for studying the properties of light (optics) in a kinesthetically and visually effective manner.