8.5 x11 BCR Spiral College Rule Notebooks, 100 Pages Per Notebook, 10 Notebooks/CS - BCR® Spiral Notebooks are an ideal choice for cleanroom documentation. They may be used in many industries, including laboratories, biotech research facilities,aerospace, electronics and semiconducter, circuit board, pharmaceutical and biomedical device manufacture. Composition and Attributes: Made with Berkshire cleanroom bond 1040. Can be customized with your company logo. Spiral design allows book to lie flat and stay open. Translucent polypropylene cover makes contents easily identified. Pages can be written on both sides; 100 pages/50 sheets. High tear resistance to withstand long periods in use.