4x Pen Loop by Arune - Extra Large adhesive holder for Moleskine, Paper Mate, Pilot, journals, planners, sketchbooks, more We plant a tree for every order placed. Fits larger sized instruments up to about 5cm in circumference. For smaller instruments, please see our Medium (3cm) and Large (4cm) sized pen loops. Add a pen or pencil to your notebook, sketchbook and SOME tech devices.* Synthetic leather looks great and is cruelty free. Self-adhesive for quick and simple application.