The Arda Technoschool 40cm ruler in blister pack offers versatility and perfect visibility for everyday school and technical use. Made of highly resistant transparent plastic, it includes a graduated bevel for easy reading and a special anti-smudge edge that prevents smudging when using felt-tip pens or precision markers. Its 40cm length provides an ideal measuring area for geometry exercises and work on A3 paper or sketchbooks. It is an essential accessory for primary, secondary and technical school students who seek precision in every stroke.