DEZIINE Aluminium Metal Triangular Scale Ruler 3 Sides for Architecture Drafting Architect Engineers Technical Measuring Tools Ruler (Multicolor) Ruler  (Silver)

The best-in-class product with its amazing benefits and features gives an incredible solution to all your problems! Features smudge proof concave design to keep drawings clean. Color coded grooves for quick and accurate selection of the desired scale. Solid core with 3 sides equipped 6 different scales to meet all your needs.