The new and improved Triangle Square Up Plus Rulers, by Quilt in a Day, create flawless half and quarter triangle squares faster than ever! These rulers feature specific grooves to cut triangle tips at 1" or 1/2" increments and convenient 1/8", 1/4", 1/2" and 1" lines for the most accurate measurements. The Triangle Square Up Plus Rulers are hefty acrylic, and made with laser-precise lines printed in two colors for effortless reading. Made in the USA.