Give your quilt clean, crisp stitch lines with Sariditty's 3pc Paradigm 60 ° Triangle Ruler Set. A variety of triangular and straight-line motifs, as well as perfect 60 ° angles, are all possible now thanks to this handy set. Made with high-grade acrylic, this 3pc Paradigm 60 ° Triangle Ruler Set from Sariditty provides multiple size options from 3" up to 6-1/2". Choose from three different sizes to fit your machine: low shank, high shank, and long arm.