Zequenz Basic Plus + Collection – Hard Bound Soft Grey-Black Cover Roll-Up Journal that has the unique, round 360 binding, which stands for all-round usability, flexibility, and durability. It has a combination of Grid paper in first 100 sheets/200 pages in front half and then Blank 100 sheets/200 pages in back half of the notebook. Best suited for ballpoint pens and pencils. It has 70 GSM, smooth surface, white premium acid free paper used for greater writing comfort.