color-light blue
cat-work and office
cat-stationery and paper
tag-ruler
tag-plastic ruler
tag-measuring
tag-measure
tag-desk ruler
tag-portactor
tag-plastic portactor
tag-triangle ruler
tag-math
tag-measurement
tag-straight
tag-straightedge
tag-technical drawing
tag-drawing instrument
tag-measuring instrument
tag-measuring instruments
tag-drawing instruments
tag-mechanical drawing
tag-right angle
tag-plastic
tag-drafting
tag-drafting tools
tag-drafting kits
tag-drawing tools
tag-drawing tool
tag-blueprint tools
tag-drafting equipments
tag-architect tools
tag-geometry
tag-geometric drawing
tag-geometry rulers
tag-geometry ruler
tag-measuring tools
tag-measuring tool
tag-rulers
tag-architect ruler
tag-architect rulers
tag-sketch tool
tag-sketch tools
tag-sketching tools