Amazon Basics Classic Slim Lined Notebook, 13 x 21 cm, Black

This is a 240-page ruled notebook that can be for calculations, creating lists, and thinking. This notebook uses acid-free paper, the same type for official documents. It's highly resistant to deterioration from light and air. Includes a bookmark string. Features an elastic band to securely close the notebook. Includes an expandable inner pocket. The front and back covers are made of durable, rigid material, making the pages less likely to wrinkle and convenient for writing while standing or carrying around. A standard size with rounded corners for a stylish finish. ^A standard size (13cm x 21cm) with rounded corners for a stylish finish. The inner pocket can be expanded as needed, allowing you to store small items such as loose notes, business cards, and receipts.