WRIGHTS-Tri-Recs Tools are thick and sturdy so they will stand up to years of wear. This 2 piece set makes it easy to make triangles within squares and divided rectangles. Also includes an instruction booklet. Includes one 6" x 6.75" x 6.75" triangle with 1/4" seam allowance built in and one 6.5" x 3" x 6" rectangle with 1/4" seam allowance built in.