QUALITY: Our scale ruler made of solid, very solid not rust, perfect for office drawing work or school classroom study.
TRIPLE SIDED DESIGN: Triangular Architect's ruler features 3 sides with 6 different scales, very convenient and useful for.
STANDARD IMPERIAI MEASUREMENTS: 1-1/2", 1, 3/4", 3/8", 3/16", 3/32", 1/2", 1/4", 1/8", 3, 16.
LASER ETCHED TECHNOLOGY: Architect ruler for laser etched, laser etched technology effectively prevents scale numbers and markings from wearing off or fading away, they will not wipe or scratch off ever.
WIDELY APPLICATION: metal rulers are good for technical, artists, architects, engineers, teachers, and students.