No need for a carbon sheet between the pages to create a duplicate.
These are carbonless self-copying pages (each page has a self duplicating page).
1/4 inch graph paper,all pages consecutively numbered.
Copy page is perforated for easy tear out.
Top page stays permanently in the notebook.
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).
Use this spiral-bound, 50 carbonless-paged notebook for all your labs.Details: