Ooly's black paper sketchbook comes with a cover to decorate and make your own. It contains 75 acid-free sheets of heavy black paper, that are perforated at the top so you can easily remove pages. It has an elastic strap so you can keep everything safely together in the notebook.
This is the large size: 8 x 10.5in. 110gsm paper.
Check out the smaller version and white paper sketchbooks, too.