12 inch long acrylic Engineering Triangular Scale Ruler with fractions of an inch 10, 20, 30, 40, 50, 60. Designed for accuracy and longevity. The design is the classic symmetric 3-lobed cross section with 6 scales
Six different scales in one ruler, packed in a convenient plastic container. Color coded grooves on each side: Red, Blue and White. The graduations are clearly marked and will not rub off. Sturdy acrylic construction. Convenient for use in professional applications, such as Engineering, Technical drawing and Architecture. Also a must for any cool dad wanting to show off for his kids. Or for cool kids wanting to show their dad how cool they are. High School Students and College Student alike will love this versatile tool. Ideal tool for Precision measuring