Roudaru Set of 2 rulers, 30 cm, triangular ruler, metal triangular scale ruler, aluminium triangular scale ruler, 1:20, 1:25, 1:50, 1:75, 1:100, 1:125, 1:200, 1:250, 1:300, 1:400, 1:500 for architects. Engineers : Amazon.de: Stationery & Office Supplies
Aexit 3 in 1 15 cm 30 cm 40 cm Messbereich Doppelseite Studenten Büro Schreibwaren Metrische Skala Lineal Lineal Silber Ton (123b042bee5d19c948931ad066a07198) : Amazon.de: DIY & Tools
Amazon.com: STAEDTLER Ruler, 30 cm Length, Double-Sided Scale for Left- and Right-Handed Users, Made of Transparent Plastic, Ruler in polybag, 562 200 PB : Tools & Home Improvement
Mophorn 1 Axis Lathe Linear Scale 150mm with Accuracy 0.0002 Inch Optical Length Precision Linear Scale Aluminum Body for Mill Milling Lathe Machine with Accessories: Amazon.com: Industrial & Scientific
TACRAY Titanium Straight Ruler in Both cm & INCH Linear Measure, 19cm Anti-skidding Ruler, Multiple-Functional Ruler with a 1/4" Hexagonal Screwdriver (Black Coating) - - Amazon.com