on saleTWSBI GO Fountain Pen - Sapphire

Product Code TW-M2530210

In Stock

out of stock

on saleTWSBI GO Fountain Pen - Sapphire

Product Code TW-M2530210

In Stock

out of stock

$18.99
Color:
Sapphire
Nib Guide

Not sure which size nib is best for you?

Try our Nib Nook tool to view and compare nib widths using our writing samples. Learn more ›

The TWSBI GO is the most affordable TWSBI fountain pen yet! A unique feature of this model is the spring loaded piston. This pen has a translucent blue body and clear grip section, so you can see your ink and the spring piston mechanism at work, and has a clipless push/snap cap. It is incredibly easy to fill this pen from bottled ink - simply unscrew the barrel to access the plunger, submerge the pen’s nib down into the ink, press down on the piston to compress the spring, and it will fill the barrel with ink! Screw the barrel back on and you’re ready to write. It is completed with a silver stainless steel nib.

Condition
New
Brand
TWSBI
Type
Fountain Pens
Color
Clear, Blue
Demonstrator

Whether or not the barrel of the pen is translucent, allowing you to see the ink and filling mechanism inside.

Yes
Body Material
Resin
Cap Type

How the cap is opened/closed from the barrel of the pen. Some common options include Snap-Cap, Screw-Cap, Magnetic Cap, or Capless (no cap).

Snap-cap
Compatible inks & refills

Which ink this pen will accept. Choices include bottled ink and various styles of pre-filled ink cartridges.

Bottled inks
Filling Mechanism

How the pen fills with ink. Click here to watch our video tutorial on common filling mechanisms.

Piston
Grip Material
Resin
Nib Size
Extra-Fine, Fine, Medium, Broad, 1.1mm Stub
Nib Color
Silver
Nib Material
Steel
Postable

Whether or not the cap fits securely onto the back of the barrel when open.

Yes
Retractable

Whether or not the nib/tip can retract into the body of the pen (usually for click or twist-open style pens).

No
Trim
Silver
Diameter - Body
14.7mm (0.58in)
Diameter - Cap (without clip)
17.2mm (0.68in)
Diameter - Grip (mm)

Measured from the place most people choose to rest their fingers, which varies with each pen.

10.0mm
Length - Body

The measurement from the back end of the barrel to the tip of the nib.

125mm (4.92in)
Length - Cap
60.4mm (2.38in)
Length - Nib

The measured length of the visible portion of the nib when it is installed in the pen, from grip to tip.

17.6mm (0.69in)
Length - Overall (Closed)
134mm (5.28in)
Length - Overall (Posted)

When the cap of the pen is posted onto the back of the pen body, this is the measurement of the entire pen including the nib.

171.9mm (6.77in)
Weight - Body

If a converter is included with the pen, this weight is reflected in the total.

12g (0.42oz)
Weight - Cap
5g (0.18oz)
Weight - Overall (g)
17.0g
Max Ink Capacity - Piston Vac

The maximum volume of ink that can fit in the pen when using the built-in piston or vacuum filling mechanism.

1.61ml

Customer Reviews

Based on 136 reviews
67%
(91)
15%
(20)
11%
(15)
3%
(4)
4%
(6)
d
deborah b.
Twsbi

Love this pen ,it writes so nice

M
Mary M.
Better than cartridge IMO

This is my first piston, and I like this form factor better than the cartridges I used in the past. I had to use a syringe for the ink sample, but that was due to a lack of better filling equipment. Even with this challenge, it was easier and less damaging to the pen (I over-jam cartridges). The clear gives me a better view, which is helpful as a new fountain pen user.

B
Beryl H.
Disappointed

I bought one of these very inexpensive pens to use when I travel. I loved it. One of the best pens I have ever used. When refilling it, the of the plunger thingy fell apart and the tiny gold ring flew off and vanished into the rug. I have looked and looked and cannot find it so hence, I ordered a second pen.

Unfortunately, it is not like the first. I don't think the nib is the correct one but even if it is correct it is very scratchy and not at all like the perfect nib on pen #1.

At this point I am unsure of what to do. I know this is a lot of fuss over an $18 pen, but I travel for work and after losing a much more expensive pen, this was my best option. So, do I order a third pen and hope for the best? I am thinking of send both pens back to Goulet and see if they can take a part from pen #2 and fix pen #1, which I loved. Any suggestions?

S
Sreevalsan V.

Great pen

C
Catherine K.
Very mixed feelings on this pen

My positive impressions first:
Broad nib is wonderfully smooth and wet without being too much
It does reverse writing probably better than I've ever seen, if that is something that matters to you.

The problem:
The cap is SO hard to get off that it actually hurts my hands to do so.

Sadly, the cap problem makes this almost unusable for me, which is really sad as I want to like this for that nib!

FAQs about Fountain Pens

How do I fill a fountain pen with ink? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It depends on the pen's filling mechanism, which you can find in the Technical Specs section above. 

Here's a quick definition of the most common filling mechanisms:

  • Cartridge - A small, disposable, sealed plastic reservoir that holds fountain pen ink. These come pre-filled with ink, and typically you just push to insert them into place and you'll be ready to write! Check out our quick guide here.
  • Converter - A detachable and refillable ink reservoir that allows you to use bottled ink in a cartridge-accepting pen. Typically you will install the converter into the grip section, dip the nib/feed into the ink, and twist or pull the converter knob to draw ink into the converter. Here's a video for how to fill a cartridge/converter pen using a LAMY pen as an example.
  • Eyedropper - A pen that utilizes the entire barrel as a reservoir for ink. Ink is directly filled into the barrel, allowing for a high ink capacity. Here's a video on how to do it!
  • Piston - A type of filling system that uses a retracting plunger inside a sealed tube to draw ink into a pen. They are typically either twist or push-operated. These pens cannot accept cartridges or a converter, and only fill from bottled ink.
  • Vacuum - A push-style piston that uses pressure to fill the large pen body with ink. They seal the ink chamber when closed, making it ideal for flying without risk of leaking. Check out our video on how to use a vac filler here.

Check out more info on these filling mechanisms including a video on how to fill each one on our blog.

How do I clean a fountain pen? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

It depends on the filling mechanism, but it mostly comes down to flushing it out with water, and sometimes a little bit of Pen Flush if the ink is really stuck. 

It's a bit easier to show than to tell, so we've put together a few quick videos showing you the process:

How often do I need to clean my fountain pen? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

We recommend a good cleaning every 2 weeks, and any time you change ink colors. 

Water will usually do the trick, but we recommend you use our Goulet Pen Flush if the ink has been left in the pen for a while and could have dried up, or when you’re switching ink colors.

My pen won’t write! What do I do? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

First things first... make sure you have ink in the pen! Be sure that the ink cartridge or converter is seated properly in the pen, and that you aren't out of ink.

We always recommend you give your pen a good cleaning first, using our Goulet Pen Flush, or a drop of dish soap in some water. New pens often have some machining oil residue left in the feed, so a good cleaning often does the trick first.

If that still doesn't work, try priming the feed. This consists of either dipping your pen nib and feed in ink, or forcing ink from the converter down into the feed. 

If it’s still not working after that, please reach out to us so we can help! 

What's your return policy? 8EDA1617-F73A-4DAF-8245-6D2BF4ABEB7B

You can submit a return request within 30 days of your order date. You can read all our Return Policies here.

To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.

Please note we are unable to accept a return of any Namiki or Sailor Bespoke fountain pen for any reason once it has been used with ink. Please thoroughly inspect and dry test the pen before use.