This clip ruler from Midori is the perfect companion to your Papillon Press Notebook. It will help make bullet-journaling easy, with built in cats and lines to help keep you organized. It comes with a clip to secure it to your notebook and use as a bookmark if needed.
This ruler measures up to 10 cm.
The 0.5 mm and 0.7 mm markings show the width of the two sections, helping you add your own rule lines to blank paper.