Since 1952, TOPS has provided quality products and services to businesses throughout the world. TOPS continues that commitment providing innovative, high quality value-added paper products for the office, school and home. TOPS Research Notebooks are designed to help record projects and work in progress in a range of subjects, such as Chemistry, Math, Science, and Engineering. The TOPS Lab Research Notebook is ideal for lab work and documenting results. The included carbons allow you to create a duplicate as you accurately record data. With 100 one-sided sheets and numbered pages, the TOPS Lab Research Notebook is easy to index projects for future reference. These books contain quadrille ruling with 4 squares per inch, and the hard cover protects the contents within. Whether it"s a multi-part form, notebooks, writing pads, record books, or any of the hundreds of items we offer, you can count on TOPS products to help!