Keep track of your lab work with this exceptional quality lab notebook. Oversize pages are produced from extra-heavy 24# buff bond paper, and are printed with a 4×4 graph print. The sheets are section sewn, which allows for extra “lay-flat” when taking notes in the lab. Covers are water-resistant 20pt red Genuine Pressboard. Pages are sequentially numbered 1-152. Proudly made in USA! Paper Color: BUFF Lab Notebook 152 pages of 24# buff bond paper 4x4 graph print pressboard covers numbered 1-152 Sheet Size: 11.75" x 9.13"