Quilt in a Day Rulers, Templates and Notions may not be sold on Amazon, to Amazon, or to unauthorized third parties that resell on Amazon.6 1/2 Triangle Square Up PLUS by Quilt in a Day This New and improved Triangle Square Up Ruler makes perfect half triangle squares or quarter triangle squares in half the time. Features tip grooves to trim tips at 1" & 1/2" increments. Squares patches up to 6 1/2 inch. The ruler is marked in two colors for easy reading and coordinates with the most popular ruler brand. Convenient 1/8 inch, 1/4 inch, 1/2 inch and 1 inch lines for precise measuring. Laser cut and printed on Polycarbonate Clear Plastic.