Triangular Body Design：This Architectural Triangular Scales features a hollow triangular body that reduces weight, while the three sides hold multiple standard scales for floor plans or site maps Laser Etched Markings：The Laser Etched Triangle Scale Ruler feature on this Architectural Triangular Scales keeps graduations legible under desk lamps or sunlight, serving as a Drafting Ruler for scale conversions Blueprint Reading Tool：Use this Architectural Triangular Scales as a scale ruler architect tool for construction blueprints, where the Architecture Ruler for Draftsman and Engineers includes both imperial and metric scales on the same bar Drafting and Engineering：This Architectural Triangular Scales functions as an Architecture Ruler for Draftsman and Engineers during CAD print verification, with the triangular scale ruler edges staying straight for line drawing Architect Scale Versatility：As a scale ruler architect model, this Architectural Triangular Scales covers common architectural scales used in residential or commercial plans, making the Drafting Ruler suitable for landscape plans or interior elevations, Manufacturer: AYWTIUN