This 3 piece template set can be used to make a 10" finished size Winding Ways quilt block. The pattern is very similar to the Kaleidoscope pattern. This pattern is sometimes referred to as the Wheel of Mystery. The 1/4" seam allowance is marked all the way around each piece, with holes and lines to mark the seam allowance on each curve. The lines can be used to line up the middle of the curves perfectly and accurately. This is the most accurate way to use this pattern.