This block is a modified Mariner's compass. For piecing instructions and more info, please refer to the blog post linked above. Each pattern only makes 1/4 of the entire block. You will need to print out the pattern four times to get each of the 4 block sections to complete the entire Mariner's compass. Make sure your printer is set to print at 100% or 'No Scaling'. All seam allowances are 1/4". Here is a schematic of the finished block. The finished block is 12". Piecing guide can be found here http://trilliumdesign.blogspot.com/2012/10/kaleidoscope-mariners-block.html BASIC SKILLS NECESSARY sew, quilt, some foundation piecing experience SIZING / FINISHED MEASUREMENTS 12"