Astrid Pattern by GE Designs, designed by Gudrun Erla. The striking look of Astrid is much easier to create using the Stripology XL ruler from Creative Grids and designed by GE Designs, with a focus fabric and some precuts: 2.5 in. strips or fat quarters. Instructions for using regular rulers are included. The Astrid pattern comes with four different size options: lap, twin, queen/king.