In Mnemosyne, named for the Greek Goddess of Memory, Japanese stationer Maruman has designed a notebook that stays quiet while you think. Sleek polypropylene covers provide durability and a firm writing surface, imprinted with a touch of gold. The paper inside is the result of years of refinement: smooth, acid-free and fountain pen-friendly. Sheets are 7mm ruled in gray, on both sides. Every tenth rule is slightly bolder, subtly dividing the page into three sections. Sheets are micro-perforated for clean removal so you can detach them when needed. A space for date and title keeps notes easy to reference; black twin-ring binding keeps the notebook perfectly flat so the entire page is usable. 160 7mm lined pages 7 x 10"