Lab Notebook with carbonless pages. These are self-copying pages (each page has a self duplicating page), 1/4 inch graph paper, all pages consecutively numbered, the copy page is perforated for easy tear out, Record of Contents page to log lab experiment information, Lab Safety Rules page, scientific reference information printed on the bi- fold back cover (ex.most up-to-date periodic table, scientific formulas, conversions, etc). Spiral Bound, 50 pages.