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Ruler Donau 20 cm transparent — Donau PBSX1543
The Donau 20 cm transparent ruler is a compact measuring tool designed for precise metric measurements and straight-edge drawing. Made from clear plastic, the ruler offers unobstructed visibility of markings and the surface beneath, making it practical for school tasks, technical sketches and everyday stationery needs. Its 20 cm scale is printed along one edge and the lightweight construction supports easy storage and transport.
The transparent construction enables accurate alignment with underlying material and clear reading of the centimeter scale. The straight, smooth edge provides a reliable guide for drawing lines and cutting. Its compact 20 cm length is suitable for standard notebooks and drafting panels while remaining portable. Durable plastic resists minor bending during normal use and keeps printed increments legible over time.
Place the ruler on the surface with the printed scale aligned to the starting point of your measurement or drawing. Hold the ruler firmly to prevent slipping, then read the centimeter marks directly or draw along the straight edge with a pencil or pen. For cutting tasks, position the ruler as a guide and use a suitable cutting tool held against the edge, applying steady, controlled pressure. Store the ruler flat or in a stationery case to avoid warping.
Use gentle pressure when aligning and drawing to preserve printed markings. Avoid exposure to high heat or prolonged bending to maintain straightness and legibility. Clean with a soft, damp cloth to remove smudges without scratching the surface.
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