自黏長方形筆夾 - 丹寧藍

I was worried the adhesive wouldn't hold on my planner's fabric cover, but it's surprisingly strong after pressing it down. The denim blue matches my journal cover perfectly, and the elastic loop fits my favorite pen snugly.

I stuck this to the inside of my notebook cover and it’s held up through daily use—the elastic still snaps back perfectly. That denim blue color looks even better against cream paper than I expected.

The denim blue is even prettier in person, and the adhesive backing has held firm on my planner cover for two weeks straight. The elastic loop stretches just enough to keep my favorite pen snug without slipping, and at 55x25mm it doesn't take up too much space.