Three-piece set of electronic and electrical symbols drawn using a stencil Each measure 210 x 90 mm, with a 1.5 mm thickness. composed of translucent, dimmed grey plastic. I-General Symbols: squares, rectangles, triangles, circles, polarity symbols in various sizes, and symbols for data flow charts and sinusoids II - Electronic Circuit Symbols: earth, resistor, loudspeaker, switch, transformer, terminals, rectifier diode, and transistor symbols III - Electrical Layout Symbols: speaker, aerial, earth, socket, lights, and many more symbols in various sizes. For simple positioning, the drawing medium can be seen beneath the template thanks to the transparency rate. produced in the Czech Republic