This is an 8" x 10" Lab Book. 
Cover: Tough paperback with Periodic Table (updated 2022), Useful Constants, Common Metric Prefixes and Electron Shell Configurations on the back.

Binding: Secure professional paperback binding, i.e. it’s built to last.

Dimensions: 20.3 x 25.4 cm (8” x 10”). (Almost the same width as A4 but a few cm shorter)
Interior:
 
101 pages of thick white paper (minimizes ink bleed-through)
Grid ruled with thin lines that don't overpower personal notation
Unit Conversion Tables on the back page
 
***Does NOT support page duplication