Product Code:
LOP-PLIT-0074
Description:
A compact visual teaching aid which is robust in construction wood board 400 x 280 x 13 mm with matt
white surface, mounted on rubber feet carries a circular scale with four quadrants 0 - 90º graduated every 2º, with two lines at right angles.
Specification:
The ray box is provided with slots to accommodate metal slits, colour
filters, lenses etc., & is
fitted with a 12V 24W line filament.
