The product number it gives on the cover is 05674. This one is quite old, and I can’t find that item number, or anything that looks a lot like this notebook, on their web site.
This is a completely ordinary spiral-bound graph-paper notebook. It’s three-hole punched, the pages are not oversize or perforated. The paper is light, not as heavy as 20 pound. The 4-to-the-inch squares are in gray again; maybe this is e Mead thing?
The thing wrong with this is that the back board, while it looks like cardboard, is hardly any stiffer than the paper. This makes it not very useful for most of the situations where one wants to use a notebook.
It was, however, very cheap.