"gel box"

This Ray Box is a simple, safe, and sturdy source of projected light for many classic optics experiments. Best of all, you don't need a completely dark room to conduct optic experiments due to its high-intensity light!

This condenser box provides different values of Electrolytic capacitors, ranging from 1μF to 4.7μF. Built on a 8 x 5" plastic box. All these capacitors are of ± 10% tolerance and are of 63 volts working voltage.

This updated Ray Box uses five super bright LEDs for bright, white rays that are clearly visible.

Sturdy box for investigating frictional forces.

This ray box is ideal for optical demonstrations in the classroom.

No need to Buy New Magnets

This ray box is ideal for optical demonstrations in the classroom.

This laser ray box has several modes, with 1, 3, or 5 beams.

This box shows Planck's Constant in action.

This laser ray box is adjustable, magnetic, and bright enough to use in ambient light.

Standard decade resistance box.

Take the classic resonance box to a whole new level.

An advanced laser ray box that clearly demonstrates the optical axis.

This box changes resistances in a laboratory circuit.

The 4 decade resistance box is a handy and convenient way to investigate resistance.

Demonstrate the optical principles of lenses and mirrors.