Red, Blue, and Green LED Light Source Devices;Educational Tool For Refraction, Reflection, Etc.;Learn about Light Passing Through Prisms;Magnet on Bottom for Sticking to Whiteboard for Demonstrations;Each Measures 4.5 x 1.37 x 0.75. Great For STEM Curriculum Hands-On Learning

• 3 color set LED light source device (japan import)

3 color set LED light source device (japan import)ARTEC EDUCATIONAL