LED Ray Box with Slit Plates and Concave Lens, Battery-Operated Material_Nylon Four-times enlarged premium ear model

Four-times enlarged premium ear model with five separable sections exposes detailed outer

Borosilicate glass U-tube manometer with a built-in stopcock mounted on a back-plate 80-0-80 scale at 2mm subdivisions

supplied with aluminum

providing the high-turns winding for transformer ratio and electromagnetic induction demonstrations

and left hemisphere

LED Ray Box with Slit Plates and Concave Lens, Battery-Operated Material_Nylon Four-times enlarged premium ear modelRugged ABS molded enclosure houses cool running LED optics across seven accessory grooves, supplied with two slit plates, two blanks, and a concave lens for ray tracing studies.