Features: [Convenient page turning design] Adopt a coil binding structure to easily achieve 180-degree equalization, solving the problem that traditional Sealant-mounted books are difficult to fully unfold. Suitable for scenes such as classroom notes and meeting notes that require frequent page turning, making writing smoother. [Precise layout planning] The inner page is a B5-size Arrangemented, and each Array is evenly distributed, helping users keep clean and organized when writing. It is especially suitable for work or learning environments that require precise layout, such as engineering drawings, mathematical calculations, Such. 【Durable and Nature friendly Constituent】The cover is Produced of Distinctive cardboard, which has good compressive resistance and wear resistance, extends service life, and uses Nature friendly paper to reduce the Outcome on the environment. Suitable for students and Specialists who focus on sustainable development. 【Lightweight and portable experience】The overall weight is Undemanding to carry, suitable for putting it in a backpack or Container, meeting the needs of commuters and travelers. Inspiration can be recorded at any time, whether in a cafe or in a subway. [Multi-purpose application] The inner page Arrangement is not only suitable for text writing, but also for various purposes such as drawing and table production, meeting the diverse needs of different users. Suitable for creative workers, students, and anyone who needs flexible recording tools. Specifications: Constituent: Paper Practicality: Suitable for students' classroom notes, office meeting notes, creative drawings and other occasions, easy to carry and store Package Includes: twist the notebook B5×1 note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.