With this Fons & Porter Easy Diagonal set ruler, cutting side setting triangles and corner setting triangles for diagonally set quilts is a snap. All the math is done for you. Simply cut a fabric strip, then cut the side and corner setting triangles from the strip using the marked lines on the ruler that correspond to your finished block size. This ruler is designed to cut setting triangles for blocks that finish 3in to 12in square. Easy to understand directions printed on the ruler.
This ruler measures 18-1/2in x 9-1/8in.
Detailed instructions are included with each ruler.