The Arda Profil 50cm aluminum ruler in blister pack combines an intermediate size with excellent technical construction for precision work. Made of durable aluminum with a non-slip rubber strip on the base, it remains stable during drawing and has a designed edge to prevent ink smudges. The laser-engraved millimeter graduation offers maximum definition and resistance to natural wear. Its 50 cm length is highly recommended for visual arts studios, design offices, and technical drawing classes that work with expanded paper formats.