1x Red Pen Loop by Arune - adhesive holder for Moleskine, Paper Mate, Pilot, journals, planners, sketchbooks, more We plant a tree for every order placed. Fits most standard sized pens up to 3cm in circumference. For larger instruments, please use our LARGE or XL 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.