If there's a smaller grid notebook out there, we certainly haven't seen such a thing in Kansas. I mean think about it. A millimeter is barely anything and this is just two times that. VERY SMALL GRID, YA HEAR?
This shade of pea soup green is officially the best color for notebooks. Bonus, the super-smooth paper inside is a treat for writing, it lays nice n' flat when open, and its unique grid/lined hybrid paper makes for massive adaptability.