Imagine your favorite notebook or planner suddenly gaining a quiet, helpful companion—one that travels right along with it, keeping pens and tiny treasures close at hand. The MIDORI Bookmark Pen Case (Book Band Pen Case) slips gently onto the cover of your B6 to A5 notebook via a soft, adjustable elastic band, turning scattered stationery into a tidy, portable set that feels effortlessly organized. Two thoughtfully shaped pockets—one spacious, one slimmer—let you sort items by size: perhaps your favorite pen and ruler in one, sticky notes, clips, and a slim highlighter in the other. The light mesh fabric offers a gentle glimpse inside without ever feeling cluttered, while the elastic band stretches and adjusts with ease to hug your notebook securely. A small, everyday joy that makes carrying your writing essentials feel light, intentional, and quietly delightful. Key Features Always attached — elastic book band keeps your pen case securely on your B6–A5 notebook cover so essentials travel exactly where your ideas do Smart organization — two differently sized pockets let you sort pens, sticky notes, rulers, and clips neatly, making everything quick to find and grab Adjustable fit — stretchy band easily adapts to various notebook thicknesses, ensuring a snug, comfortable hold without slipping or bulging Light & visible — gentle mesh fabric shows contents at a glance while staying feather-light, so you carry only what you need without extra weight One-piece convenience — combines pen case, bookmark, and organizer in a single slim unit, reducing clutter and making your daily carry feel effortlessly tidy Specifications Compatible Notebook Sizes B6 to A5 (adjustable elastic band) Dimensions (excluding pull tab) H180 × W95 × D19 mm Material Nylon (body), mesh pockets, elastic band Pockets 2 pockets (varied sizes for sorting) Single Item Package Dimensions W99 × D20 × H228 mm Made in Japan Usage Notes Adjust elastic for secure fit; ideal for pens, sticky notes, rulers, clips; mesh allows easy visibility