Affix this self-adhesive pen holder to the inside back cover of your notebook for an easy way to keep your favourite pen handy. Designed and made by Leuchtturm, it goes perfectly with both the A5 and A4 Leuchtturm1917 notebooks, but can be used with any notebook or journal. It is made from sturdy elastic that fits a pencil, fountain pen, highlighter or whatever writing utensil you use most.