Are there refills available for this pen?

Yes. Just search for them in the search box at the top of the page, asking for the refills of_____________ and type the pen's name. Make certain you include RT1 and the 0.28mm, as there is also an RT, and there are also different pen point sizes.

Is this truly a ballpoint pen? It looks almost identical to the signo gel pen.

My husband uses it at work, he says it is an actual ball point pen, however the pocket clip broke the first day, otherwise it works great.

Pictures of writing with a comparison to a common object such as a piece of currency, please?

not sure where this pen currently is but i can say this, i write small and had trouble with other fine pens bleeding my writing together and this pen did not bleed like others

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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三菱鉛筆 uni Ball Signo Knock Ballpoint Pen RT1 0.28mm Color, Black (UMN15528.24)

Product ID: 272905304

Details

Age range (description)
Adult
Brand
三菱鉛筆
Colour
Black
Ink colour
Black
Writing instrument form
Ballpoint Pen

🖤Sleek black gel ink

🖊️0.28mm ultra-fine tip

🇯🇵Precision Japanese engineering

¥2468

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

Description

🖊️ Write sharp, stand apart.

COMPACT PORTABLE - Slim 14.2cm design fits perfectly in your professional arsenal.
SMOOTH GEL INK FLOW - Enjoy consistent, smudge-resistant black ink that glides effortlessly.
ULTRA FINE PRECISION - Experience flawless 0.28mm lines for the sharpest notes and sketches.
JAPANESE CRAFTSMANSHIP - Crafted in Japan for unmatched reliability and smoothness.
WRITE SMALL THINK BIG - Perfect for detailed writing—because every tiny detail counts.

The Uni Ball Signo Knock Ballpoint Pen RT1 features an ultra-fine 0.28mm tip delivering precise, smooth black gel ink writing. Made in Japan, this sleek and compact pen is designed for professionals who demand clarity and finesse in every stroke.

Specifications

ASIN	B00B57LNP8
Additional Features	リトラクタブル, リフィラブル
Age Range Description	Adult
Best Sellers Rank	#49,157 in Office Products ( See Top 100 in Office Products ) #1,042 in Retractable Ballpoint Pens
Body Shape	Round
Brand Name	三菱鉛筆
Closure Type	Retractable
Color	Black
Customer Reviews	4.4 4.4 out of 5 stars (707)
Drill Point	[INF] Medium
Global Trade Identification Number	04902778142554
Grip Type	Smooth
Hand Orientation	Ambidextrous
Hardness	H
Included Components	Ink Cartridge
Ink Base	Water
Ink Color	Black
Item Diameter	11 Millimeters
Item Weight	5 g
Line Size	0.28mm
Manufacturer	Uni
Material Type	Metal
Model Name	ユニボールシグノＲＴ１
Model Number	UMN15528.24
Pattern	single item
Recommended Uses For Product	Writing
Style	Japanese
Theme	Fantasy
UPC	793187744217
Unit Count	1 Count
Writing Instrument Form	Ballpoint Pen
Writing Technique	Ballpoint pen

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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¥2468

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

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

View all Trustpilot reviews