"Quarter-Square Triangles, 2.5 in. finished"
Quarter-Square Triangles, 2.5 in. finished by Triangles on a Roll. Does figuring out Quarter Square Triangle math make your head hurt? No more! Sew On A Roll-Quarter Square Triangles on a Roll make sewing Quarter Square Triangles easy and precise. The paper grid is a pattern for sewing and cutting, printed on a 50-foot long roll of paper that enables you to make as many or as few triangles as you need with 2 to 4 different fabrics. The seam allowances are included in the pattern, so all you need to do is sew and cut using the pattern on the paper. Instructions are provided on the paper; each roll makes hundreds of blocks.