This 12" block is a simple repeat.  The pattern is created because of the strong value change where the half square triangles diagonally cross the corner of the block.  Using a pre-cut strip kit makes it possible to get a beautiful flow from light to dark values using a broad range of fabrics.  Use of a design wall to determine your final layout prior to sewing the blocks together is recommended.  Quilt finishes to approximately 56" x 68".