Liquidraw Set Square Triangular Scale Ruler 30cm Geometry of 3 Protractor Professional Architectural Engineering Drawing

Set Squares + Triangular Scale Ruler 30cm Geometry Set of 3 Includes: 45 Degree 20cm / 8" Set Square Ruler, 60 Degree 25cm / 10" Set Square Ruler & Triangular Scale Ruler 30cm Set Squares Have Built In Curves & Protractor, Thickness is 2.5mm Triangular Scale Ruler Suitable For Architects Has Scales featured: 1: 10, 1: 20, 1: 25, 1: 30, 1: 40, 1: 50, 1: 100, 1: 200, 1: 250, 1: 300, 1: 400, 1: 500 Suitable For Architects, Engineers, Carpentry, Draughtsman, Joinery & Model Designers, Manufacturer: Liquidraw