Alvin 12 High Impact Plastic Architect Triangular Scale

Easy to Use - Sharp, easy-to-read graduations resist wear, includes both English and metric measurements: Multipurpose Scale - Designed for architect,

Alvin, Metric Triangular Scale, White Drafting, Architecture and Drawing Ruler, Great for Students and Professionals - 30 cm

Made for engineers - With sharp and easy-to-read machine-engraved white graduations and color-coded furrows that resist wear, this triangular scale is

ALVIN Triangular Scale with Engineering Graduations, Black Ruler 12 Model 241BP High Impact Plastic with Matte Finish, Ideal for Students

Golden Heavy Body Acrylic 2oz Tube - Chromium Oxide Green

Hyper Tough 36-inch x 1-inch Aluminum Ruler – BrickSeek

Creative Mark Qualita Gold - Round - Size 12

Alvin 6 Plastic Engineer Triangular Scale Set

Alvin 740PM 30cm High Impact Plastic Metric Triangular Scale

Alvin Triangular Scales Ruler

Pacific Arc Triangular Scale, Architect, 12 White - Midwest

Hyper Tough 36-inch x 1-inch Aluminum Ruler – BrickSeek