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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Maruman Mnemosyne Spiral Notebook, 160 Pages, B5 7.17"x10.12", 5mm Dot Grid | Professional Black Cover, Dotted Paper, Twin-Wire Bound To Lay Flat, Perforated Pages, For School & Office, Made in Japan

Maruman Mnemosyne Spiral Notebook, 160 Pages, B5 7.17"x10.12", 5mm Dot Grid | Professional Black Cover, Dotted Paper, Twin-Wire Bound To Lay Flat, Perforated Pages, For School & Office, Made in Japan

Product ID: 171064726

Details

Brand
Maruman
Color
Black
Cover Material
Plastic
Number of Items
1
Pages
160
Ruling Type
Dot Grid

📄160 perforated pages

🔄Lay-flat wire binding

🖋️80 g/m² bleed-resistant paper

COP 90016

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📝 Elevate your note game with flawless pages and sleek durability!

EFFORTLESS PAGE SHARING - Micro-perforated sheets let you tear out notes cleanly—perfect for meetings or quick handoffs.
WORK ANYWHERE DURABILITY - Resin-coated poly cover repels dirt and water, keeping your notebook pristine on the go.
SUBTLE DOT GRID PRECISION - 5mm light gray dots provide structure without distraction—perfect for notes, sketches, or bullet journaling.
SEAMLESS WRITING EXPERIENCE - Wire binding allows pages to lay flat or fold back, maximizing workspace in cafes or tight desks.
INK FRIENDLY ULTRA SMOOTH PAPER - 80 g/m² acid-free Japanese paper resists bleed-through, ideal for gel pens, markers, and fountain pens.

The Maruman Mnemosyne B5 notebook features 160 micro-perforated pages of premium 80 g/m² acid-free Japanese paper designed to prevent ink bleed-through. Its durable resin-coated poly cover and wire-bound lay-flat design make it ideal for professionals on the move, while the subtle 5mm dot grid offers clean, distraction-free structure for notes, sketches, and planning.

Specifications

ASIN	B07YQMCSKF
Best Sellers Rank	#9,682 in Health & Household ( See Top 100 in Health & Household ) #1 in Stationery Notepads
Binding	Notebook
Brand Name	Maruman
Color	Black
Cover Material	Plastic
Customer Reviews	4.8 4.8 out of 5 stars (3,472)
Global Trade Identification Number	04979093104048
Item Dimensions L x W	9.9"L x 7.4"W
Item Type Name	Notebook
Item Weight	0.02 kg
Manufacturer	Maruman
Number of Items	1
Number of Sections	3
Pages	160
Paper Size	9.92 x 6.61 after detached
Pattern	Dot Grid
Ruling Type	Dot Grid
Special Feature	Micro-perforation
Specific Uses For Product	Scheduling, Organization, Note-taking
Style	Twin Wire
Theme	Book
Unit Count	1 Count

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