on salePineider Avatar UR Twin Tank Touchdown Fountain Pen - Clear

Product Code PD-PP5601-438EF

In Stock

out of stock

on salePineider Avatar UR Twin Tank Touchdown Fountain Pen - Clear

Product Code PD-PP5601-438EF

In Stock

out of stock


MSRP $328.00

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 Pineider Avatar UR Twin Tank Touchdown, or Avatar TTT for short, takes some of the best of the original Avatar's features like the "Unbreakable Resin" material, and adds a new filling mechanism. The Twin Tank Touchdown features two ink chambers: one large ink reservoir that serves as a reserve for longer writing sessions, and a small ink reservoir that is always connected to the nib for shorter writing sessions.

The ink is drawn up into the pen via the vacuum filler on the back of the barrel. The piston knob can be set in either a "lock" or "unlock" position. "Lock" prevents ink from the larger reservoir from entering the smaller ink reservoir and also helps prevent ink leakage in transit. "Unlock" allows continuous ink flow between the two ink chambers for longer writing sessions.

This fountain pen is made from a clear material called "Unbreakable Resin", or UR for short, that is highly resistant to cracks or damage if dropped. It is complemented by silver trim, features a magnetic cap closure, and comes equipped with a #6 sized steel nib.

Fountain Pens

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

Body Material
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).

Magnetic 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.

Vacuum filler
Grip Material
Nib Size
Extra-Fine, Fine, Medium
Nib Color
Nib Material

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


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

Diameter - Body
13.1mm (0.52in)
Diameter - Cap (without clip)
14.3mm (0.56in)
Diameter - Cap (with clip)
18.5mm (0.73in)
Diameter - Grip (mm)

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

Length - Body

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

138.7mm (5.46in)
Length - Cap
64.5mm (2.54in)
Length - Nib

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

23.6mm (0.93in)
Length - Overall (Closed)
152.9mm (6.02in)
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.

164.2mm (6.46in)
Weight - Body

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

23g (0.81oz)
Weight - Cap
10g (0.35oz)
Weight - Overall (g)
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.


Customer Reviews

Based on 8 reviews

Great, Great pen. Love Pineider pens and this one feels a delight. Smooth, easy flow, light and comfortable. The EF nib, thow, seem more like a fine/medium. Gotta luv it!


Beautiful pen and writes so well!! I love Goulet pens. I am never disappointed!!


Beautiful pen and writes so well!! I love Goulet pens. I am never disappointed!!

Darwin G.
Great pen!

This pen is absolutely amazing! Easy to fill and smooth to write with! The nib is great. I'll call this the most underrated pen of the year at Goulet! You all need to promote this one!

What A Fun Practical Pen

This is my first vacuum fill pen. What fun! I am trying to perfect getting the most ink in the barrel. I am using Ferris Wheel Poison Envy which looks gorgeous in the clear barrel. One pro tip - when twisting the bottom closed after filling the pen make sure that the dot is lined up with the 'locked' symbol. It can seem to twist closed, but if those two symbols are not lined up it will leak. And leak. I was covered in purple ink. Luckily I found a blog that called this out. Now no problem. I am normally an extra fine or fine nib person, but this in medium provides a neat thin line with good flow on a sheening ink.

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.