Made of plastic in contrast-enhancing transparent orange·Scale 1:100 ·Equipped with level and direction symbols·For drawing symbols for layouts of living rooms, bed rooms, dining rooms, kitchen and sanitary fittings as well as for door openings in domestic construction·In accordance with the standards DIN 1356, DIN 18011, DIN 18022 and for microfilming ·With ink-bosses·Suitable for drawing pens.