This refill features 3 sticker pockets you can attach on the back of the leather cover of the Traveler's notebook. By securing the stickers directly on the leather cover, it creates a pocket where you can put folded A4 sized papers and tickets inside. You can even fit a business card of someone you met on your travels. This simple sticker will transform your notebook into something that is convenient both in business and travel. (Works with both Regular and Passport sizes).