One of my favorite quilting rulers!
The 6 1/2" Triangle Square Up Ruler makes perfect half triangle squares and quarter triangle squares in sizes up to 6 1/2". Fully illustrated and detailed instructions are included. The ruler is marked in two colors for easy reading. Convenient 1/8", 1/4", 1/2" and 1" lines for precise measuring. The Ruler is made of heavy gauge acrylic and is laser precise.