Is this a washable, non-staining blue?

I'm not sure what you mean by "washable" as I wouldn't consider any ink washable. If you're asking whether this ink will stain your demonstrator pens (like the infamous Noodler's Bay State Blue), it won't. I've used this ink (my favorite blue by the way) in my TWSBI ECO, TWSBI 580, and Pilot Custom Heritage 92 and have never had a problem with staining. It is not permanent on paper and will smear/run if exposed to water. Hope this helps.

Is this a washable, non-staining blue?

I highly doubt that it is washable or nonstaining, although Ive never tested that. This brand of ink offers vibrant colors that are pretty intense. It's my favorite ink by far, but I'm guessing it's pretty permanent.

How long does a bottle last?

That depends on how much you write. The bottle is 50ML and your average cartridge converter holds 0.8ML so figure 1ML per fill on by the time you wipe off your nib after filling I fill my pen on about 1 or two times a day. I tend to write a fair amount every day so a bottle of ink last me around a month and a half your mileage will vary depending on pen paper writing style etc.

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Iroshizuku Fountain Pen Ink – 50 ml Bottle – Kon-peki Deep Azure Blue (Japan Import)

Product ID: 1622788

Details

Brand
PILOT
Global Trade Identification Number
Item Volume
50 ml
Package Information
Bottle
Paint Type
Dye-based

🔵vibrant deep azure blue

🖋️50 ml premium ink volume

🇯🇵authentic Japan import quality

¥6487

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖋️ Elevate your writing game with Kon-peki’s iconic blue splash!

TOP RATED CHOICE - 4.8⭐ from 992 users—join the elite writing community
LUSH 50 ML BOTTLE - Generous ink supply for uninterrupted creativity
SMOOTH DYE BASED FORMULA - Ensures flawless flow and vivid color every time
STRIKING DEEP AZURE BLUE - Stand out with a rich, eye-catching hue
JAPAN IMPORTED EXCELLENCE - Experience precision and quality trusted worldwide

Pilot Iroshizuku Kon-peki is a 50 ml bottle of premium dye-based fountain pen ink imported from Japan, delivering a vibrant deep azure blue color. Renowned for its smooth flow and high-quality formulation, it’s a top-rated choice among professionals and enthusiasts alike.

Specifications

ASIN	B0018HJVS6
Best Sellers Rank	#45,765 in Office Products ( See Top 100 in Office Products ) #54 in Bottled Pen Ink
Brand	PILOT
Brand Name	PILOT
Container Type	Bottle
Customer Reviews	4.8 out of 5 stars 992 Reviews
Global Trade Identification Number	04902505367281
Ink Color	Blue
Item Volume	50 ml
Item Weight	250 g
Manufacturer	Pilot
Manufacturer Part Number	暂无
Model Number	INK-50-KO
Number of Items	1
Package Information	Bottle
Package Size Name	50 ml Bottle
Paint Type	Dye-based
Unit Count	1.69 Fluid Ounces
Volume	50 ml

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Good experience, but the tracking updates could be better.

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¥6487

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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