EZ Quilting Tri-Recs Triangle Ruler 8823753A This package includes two acrylic tools and instruction booklet. Cuts many sizes of triangles and divided rectangles from even size strips of fabric. Ruler sizes are 3 1/2in x 8in and 3 3/4in x 6 1/2in. This is the easy way to make triangles within squares and divided rectangles. The cut-off magic angle makes it easy to allign and sew accurately.