Faber-Castell Neo Slim Fountain Pen - Marshmallow GT (Limited Edition)

Faber-Castell Neo Slim Fountain Pen - Marshmallow GT (Limited Edition)

Creamy white and gold, limited edition. The Faber-Castell Neo Slim Fountain Pen in Marshmallow is finished in a soft, creamy white lacquer with shiny gold-tone trim. Slim, elegant and easy to carry, the Marshmallow Neo Slim is a fountain pen made to go everywhere with you.

Faber-Castell, founded in Germany in 1761, is one of the oldest names in writing, and this Marshmallow pen carries that heritage. The Neo Slim is its slender, modern metal pen, and the Faber-Castell Neo Slim Marshmallow fountain pen pairs that minimalist design with a gold-plated stainless steel nib for smooth, reliable writing.

Key highlights

• Brand: Faber-Castell, Germany
• Collection: Neo Slim
• Finish: Marshmallow
• Body: lacquered metal
• Trim: gold tone
• Nib: gold-plated stainless steel
• Nib sizes: EF, F, M, B
• Filling: cartridge / converter
• Cap: snap cap, postable
• Diameter: 9mm
• Weight: about 20g
• Edition: limited edition

The Neo Slim design

The Neo Slim is exactly what its name promises: a slim, elegant fountain pen with a narrow 9mm body that slips into a shirt pocket, a planner loop or the smallest pen case. Despite its slender profile, it has a solid metal body and a reassuring weight, so it feels like a quality instrument rather than a lightweight everyday pen. Its clean, minimalist lines make it a natural choice for people who prefer understated design.

The Marshmallow finish

Marshmallow is a soft, creamy white, light and gentle like its name. The warm white lacquer is set off by shiny gold-tone trim on the front section, end piece and clip, giving the pen a soft, luxurious look.

It was released as a limited edition alongside the deep green Rainforest. Like its sister pen, it has a gold-plated stainless steel nib to match the trim.

The nib

The Faber-Castell Neo Slim Marshmallow fountain pen has a gold-plated stainless steel nib, smooth and dependable, with a gentle amount of give. We offer the Marshmallow Neo Slim in Extra Fine, Fine, Medium and Broad.

Size and weight

The Faber-Castell Neo Slim Marshmallow fountain pen is about 140mm long capped and 156mm with the cap posted, 9mm across and about 20g. The snap cap of the Marshmallow Neo Slim clicks on securely and posts firmly on the end, which gives a comfortable full-size writing length.

Who it is for

The Faber-Castell Neo Slim Marshmallow fountain pen is ideal for anyone who wants a fountain pen they can carry every day: students, doctors, lawyers, journalists and travellers. The slim Marshmallow profile also suits writers with smaller hands, and the Faber-Castell Neo Slim Marshmallow fountain pen is an excellent first fountain pen for someone moving up from ballpoints.

Choosing the right nib

Not sure which nib to pick? An Extra Fine nib gives the thinnest line and suits small handwriting, diaries and thin paper. A Fine nib is the everyday choice for most writers in India, neat and precise on office paper. A Medium nib lays down a little more ink, so colours look richer and the pen feels smoother. A Broad nib is bold and expressive, ideal for signatures, cards and showing off shading inks. If you write quickly or press lightly, a Medium is a safe, comfortable choice; if you write small, go for Fine or Extra Fine.

Cartridges, converters and bottled ink

You have two ways to fill this pen. Standard international cartridges are clean, quick and perfect for travel: just push one in and start writing. For the widest choice of colours, add a Faber-Castell standard converter and fill from a bottle of fountain pen ink. A bottle of ink lasts far longer than a box of cartridges, so bottled ink is the favourite of regular fountain pen users.

Ink recommendations

The Faber-Castell Neo Slim Marshmallow fountain pen works with any good fountain pen ink. Here are a few colours we especially like with the Marshmallow finish, all available at Makoba:

• Graf von Faber-Castell Yozakura (pink): a pretty cherry-blossom pink
• Graf von Faber-Castell Violet Blue: a soft violet blue
• Graf von Faber-Castell Turquoise: a bright, cheerful turquoise
• Graf von Faber-Castell Royal Blue: a classic blue for everyday use

You can also browse our full range of fountain pen ink bottles and ink cartridges to find your perfect colour.

Caring for your fountain pen

A little care keeps a fountain pen writing beautifully for years. Cap the pen whenever you are not writing so the nib does not dry out. Every few weeks, or whenever you change ink colours, flush the nib section with lukewarm water until it runs clear, then let it dry. Use only fountain pen ink, never drawing ink or Indian ink, which can clog the feed. If the pen will not be used for a while, empty it, rinse it and store it clean.

The Neo Slim family

Alongside this Marshmallow pen, the Neo Slim family includes fountain pens, ballpoints and rollerballs in finishes from polished and matte stainless steel to black lacquer, brushed aluminium and limited-edition colours. All of them share the same slender profile and snap cap, so the Marshmallow fountain pen fits neatly into a matching set. A Neo Slim ballpoint and fountain pen in the same finish make a practical pair: the ballpoint for quick forms and signatures, and the Faber-Castell Neo Slim Marshmallow fountain pen for notes, letters and journalling.

A gift worth giving

A quality pen remains one of the best gifts you can give. It is useful, personal and long-lasting, and it suits almost every occasion, from exam success and first jobs to milestone birthdays and thank-you gifts for colleagues and clients. Delivered in the original brand box, it is ready to wrap and give.

Pair it with good paper

To get the most out of your writing, pair it with good paper. Smooth, coated papers keep lines crisp and stop ink from feathering, while thicker paper reduces show-through on the reverse side. Browse our notebooks and writing pads to find the right paper for your pen.

Full specifications

Explore more

Discover more Neo Slim finishes and Faber-Castell writing instruments:

• Neo Slim Fountain Pen, Shiny Stainless Steel
• Neo Slim Fountain Pen, Matte Stainless Steel
• Neo Slim Fountain Pen, Black RGT
• Neo Slim Fountain Pen, Black BT
• Neo Slim Fountain Pen, Rainforest (Limited Edition)
• Neo Slim Fountain Pen, Aluminium Olive Green
• All Faber-Castell Neo Slim pens
• Faber-Castell fountain pens
• All Faber-Castell pens

Frequently asked questions

How slim is the Faber-Castell Neo Slim Marshmallow fountain pen?
The Marshmallow Neo Slim is about 9mm across, one of the slimmest metal fountain pens in Faber-Castell's range.

Which nib sizes are available for the Faber-Castell Neo Slim Marshmallow fountain pen?
Extra Fine, Fine, Medium and Broad.

Is a converter included with the Faber-Castell Neo Slim Marshmallow fountain pen?
No, the Marshmallow Neo Slim takes standard international cartridges; a Faber-Castell converter is sold separately.

Can I post the cap of the Faber-Castell Neo Slim Marshmallow fountain pen?
Yes, the snap cap posts securely.

Is the Faber-Castell Neo Slim Marshmallow fountain pen good for beginners?
Yes, the steel nib and cartridge filling make the Marshmallow Neo Slim an easy first fountain pen.

Is there a ballpoint or rollerball to match the Marshmallow Neo Slim?
Yes, the Neo Slim range includes both, so you can build a set around Marshmallow.

Is the Faber-Castell Neo Slim Marshmallow fountain pen a limited edition?
Yes, Marshmallow was released as a limited edition alongside its sister colour.

Why buy from Makoba?

• Packed with care: Thoughtful packing that protects delicate nibs, resins and finishes
• Everything for writing: From inks to notebooks to desk accessories, everything you need is here
• World's No.1 pen store: Makoba, the world's No.1 pen store, brings global brands to your doorstep
• Largest pen store: You are shopping at India's largest pen store, with more pens under one roof than anywhere else in the country
• 90+ brands: Choose from 90+ international pen brands in one place
• Trusted by collectors: A community of 50,000+ pen collectors across India and abroad
• Delivered worldwide: Over 50,000 pens shipped to writers in India and overseas
• 100% genuine: 100% original pens with brand warranty cards where applicable