Amazon.com: Bestgle Stainless Steel Ruler, Set of 3 (12 Inch + 8 Inch + 6 Inch) Office Rulers Double-Sided Design Metal Rulers Kit for Engineering, Measuring, Teaching : Office Products
Aristo Triangular Scale (Reduction 1:500/1000/1250/1500/2000/2500, Plastic, 30 cm Long) for Measuring C : Amazon.de: Stationery & Office Supplies
IIVVERR Carpenter 20cm 8 Inches Scale Range Metal Dual Sides Metric Measure Measuring Straight Ruler Tool