Insert inner embroidery hoop into the Pillowcase in the position where you would like to draw first, extend the screw on the other hoop to its max. On a flat surface, push the outer hoop over the inner hoop, one side of your pillowcase is now taught and trapped between the two hoops. Tighten screw.
Now you are ready to draw you image. The posca pens take a long time to dry between each colour, its best to ensure they are dry before starting another colour beside an exsisting wet colour and they will "wick" into each other.
To set your image once completed, you iron on low temp without steam over you image. Best to use an old cotton cloth on top to make sure no image transfers to your iron. Best to hand wash your cover if required.