Amazon.com : MoMa MUJI Double Ring Notebook B5 80sheets - Pack of 3books Beige : Office Products
Notebook Type Ruled Loose Leaf | Binder Paper | MUJI USA
Muji Planting Tree Paper notebook (B5) is surprisingly good with fountain pens. Great for rough work, practice, etc. Got different kinds of Muji notebooks to see which ones work well fountain pens