伸縮バンドペンホルダー

Slid it onto my Day Designer in seconds and it holds my favorite pen perfectly flush against the cover. The elastic has just the right amount of tension—snug enough to stay put, but not so tight that it leaves a mark on the leather. Feels like a small upgrade that makes my planner feel properly fini

The elastic is sturdier than it looks and hugs my notebook cover without sliding around, even with daily use. I love that it adds a clean, polished look while keeping my favorite pen right where I can grab it.

Slid this onto my hardcover planner in seconds and it sits flush against the spine, so my pen finally stops rolling off the desk. The elastic holds it tight enough that nothing shifts when I toss the book in my bag, and it looks surprisingly classy for something so simple.