This little helper slides right in the spine of your notebook providing a place for your pane to feel at home.It is designed to be used with a Moleskine/BIG Fine combination. However, other books/pens might also work.1) Print it as high quality as you can. Printing this part in its original orientation requires some support material, but also provides the strength for the bend section. 2) Slide it in the spine of your notebook 3) Insert a pen