Desk ruler Staedtler Mars 563 Aluminium White 300 mm

The Staedtler Mars 563 Aluminium White 300 mm desk ruler is a precision measuring tool made in Germany for everyday use in school, office and studio environments. Constructed from lightweight yet rigid aluminium with a white finish, the ruler provides a stable straightedge for drawing lines, marking dimensions and checking short distances up to 300 mm. Graduation markings are designed for clear readout and consistent accuracy during routine tasks.

Advantages

The aluminium construction ensures long-term dimensional stability and resistance to warping compared with plastic alternatives. The 300 mm length covers typical drawing and measuring needs while remaining compact enough to fit on a drafting table or inside a drawing board clip. A white surface reduces visual glare and improves contrast with black or coloured pencils and pens, making measurements and lines easier to see.

Key specifications

• Length: 300 mm
• Material: aluminium
• Finish: white painted surface
• Type: desk/drafting ruler with straightedge
• Graduation: metric millimetre markings for precise measurement
• Country of manufacture: Germany

How to use

Place the ruler flat on the work surface with the zero point aligned to the starting mark. Keep the ruler firmly against the paper or material to prevent slipping while drawing a line or measuring. Use a pencil, pen or technical instrument along the straight edge to create accurate lines. For repetitive measurements, use the graduation markings to transfer distances quickly and check alignment visually against the ruler edge.

Recommendations

Store the ruler flat or hung when not in use to maintain straightness. Clean the surface with a soft cloth to remove ink or pencil residue; avoid abrasive cleaners that could damage the painted finish. When using on delicate paper, apply light pressure to avoid tearing or indentation.