how many sheets in this notebook?

80 sheets. It's thick, coated paper (great for fountain pens), so you should be able to write on both the front and back sides of each sheet with no bleed-through.

What is the height of the rules? Is it 7mm or 8mm?

I measure rules at precisely 7mm.

Wondering how is everyone using it

I used other notebooks for notes at work. I bought this specific one for tracking Rummy scores between my wife and I.

How fountain pen friendly is it when compared to a moleskine notebook?

Very fountainpen friendly! I primarily use a lot of steel flex pens that not only deposit a lot of ink but also carves pretty heavily into the page. This paper works very well in minimal to no bleeding and ghosting. Absorbs ink well and showcases a decent amount of sheen/shading

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📝 Elevate your note-taking game with Japan’s finest precision.

DURABLE PORTABLE - Soft yet sturdy poly cover wipes clean and protects your ideas on the go.
CLEAN DETACH SHARE - Fine perforations ensure your pages tear out cleanly—perfect for professional handouts.
FOUNTAIN PEN FRIENDLY - Thick, cushioned paper resists bleed-through and feathering, inspiring flawless writing flow.
EFFORTLESS ORGANIZATION - Large title & date columns plus triple-section lines keep your notes impeccably structured.
PREMIUM JAPANESE CRAFTSMANSHIP - Made in Japan with ultra-smooth, high-brightness paper that elevates every stroke.

The Maruman MNEMOSYNE B5 notebook features 80 sheets of premium 80g/m² acid-free paper with 7mm ruled lines, designed for smooth writing with minimal bleed-through. Its double wire binding allows pages to lay flat, while fine perforations enable clean page removal. Crafted in Japan, it combines durability with elegant organization tools like large title/date columns and section dividers, making it ideal for professionals who demand quality and style in their daily notes.

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HK$242

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Manufacturer	Maruman, Tokyo, Japan
Brand	Maruman
Model Number	N194A
Colour	Black
Cover Material	poly
Material	paper
Number of Items	1
Size	B5
Ruling	Ruled
Sheet Size	A5
Brightness Rating	92.00
Paper Finish	Ultra Smooth
Manufacturer Part Number	N194A
Manufacturer	Maruman
Country of Origin	Japan

Maruman MNEMOSYNE Notebook (B5 Size), 7mm ruled 30-line, 80 Sheets (N194A) MADE IN JAPAN

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