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Ballpoint Pens
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  6. Ballpoint Pens
  7. 三菱鉛筆 Uni Ball…
三菱鉛筆

三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink

三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink - main product image
All-inclusive price — duties & taxes paid, no customs charges at delivery
₹1,210₹1,630

You save ₹420 (26%)

Qty
三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink — Orange
Orange
₹1,210
₹1,750
In Stock
三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink — Light Blue
Light Blue
₹1,210
₹1,860
In Stock
三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink — Violet
Violet
₹1,400
₹2,180
In Stock
三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink — Blue Black
Blue Black
₹1,210
₹1,630
In Stock

Estimated doorstep delivery by 12 Dec - 25 Dec from USA

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Tested and Trusted · Always Original & 100% Imported

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Sourced from US retailers
Sourced from US retailers
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Factory-Sealed
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All Duties Included
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ExpressBox Tracked
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14-Day Smile Guarantee
USA-Sourced

Premium USA-Quality Ballpoint Pen at Competitive Price

About this item

The 三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 is a refillable, water-resistant writing instrument designed for consistent performance in India’s humid climate. Its 0.38mm tip delivers precise, smooth ink flow, ideal for professional and academic use. The pen’s contoured grip ensures comfort during extended writing sessions, while its plastic body keeps it lightweight and portable. Imported directly from the USA, it arrives factory-sealed, with all customs duties paid, ensuring authenticity and quality. Reviewers highlight its durability and consistent ink flow, making it a preferred choice for students and professionals alike.

Its water-resistant ink resists smudging and running, even in monsoon conditions, while the refillable feature reduces waste and cost per use. The pen’s round shape and contoured grip provide ergonomic comfort, suitable for ambidextrous users. Delivered via ExpressBox, it reaches your doorstep in 27-40 days, ready for immediate use. Whether for note-taking, exams, or daily office work, this pen offers reliable performance and value, backed by US manufacturing standards.

Key Features

  • Product Type:Writing Instrument
  • Item Package Dimension:0.762 cm L X 0.508 cm W X 0.508 cm H
  • Item Package Quantity:1
  • Country Of Origin: United States

Why choose this product

Superior Performance with US-Imported Quality

The Uni Ball Signo RT1 is manufactured in the USA, ensuring high standards of ink quality, durability, and consistency. Its water-resistant ink and refillable design make it a reliable choice for Indian users facing humid conditions. The pen’s ergonomic grip and precise tip support smooth, detailed writing, outperforming local alternatives that often smudge or run in monsoon weather.

Ideal for Professionals, Students & Teachers

This pen suits daily office use, school assignments, and exam prep. Its refillability reduces costs over time, and the water-resistant ink ensures legibility in humid environments. Skip if you prefer disposable pens or need a thicker line; this is optimized for fine, precise writing.

How to use

  • Insert Refill Cartridge — Open the pen tip, remove empty cartridge, insert new refill, and screw back securely for continuous use.
  • Refill When Empty — Monitor ink flow; replace refill cartridge when ink runs out, typically after hundreds of pages.
  • Maintain for Longevity — Keep the pen capped when not in use; store in a dry place to prevent ink drying or leakage.

Example scenarios

Typical situations where 三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable helps — illustrative scenarios, not customer reviews.

1
Scenario 1
Illustrative example
Where it helps

Ravi, 28, Mumbai, needs a water-resistant pen for monsoon note-taking.

How this product helps

Uses Signo Knock daily; water-resistant ink prevents smudging during heavy rains, lasts 1-2 months, saving ₹ on frequent replacements.

Material, size & usage

Material & size

Ink TypeWater-based, water-resistant
Tip Size0.38mm
RefillableYes

How to use

Recommended UseDaily writing, note-taking, professional documents
Reapplication MathRefill lasts for hundreds of pages, approx 1-2 months with daily use
Shelf LifeFactory-sealed, indefinite; use refill cartridges within 12 months
ContraindicationsNone
Allergens / IrritantsNone

How we compare

Feature三菱鉛筆 Uni BallOthers
Ink ResistanceWater-resistant, smudge-proof ink, tested in US labsStandard ink prone to smudging in humidity, no water resistance
RefillabilityRefillable with official cartridges, reduces long-term costDisposable, needs frequent replacement, higher ongoing expense
Tip Precision0.38mm fine tip for detailed writingThicker tips, less precise for fine work
DurabilityManufactured in the USA, tested for durabilityVariable quality, often less durable in humid conditions

Product details

SKUsuq1788
GTIN04902778142677
Brand三菱鉛筆
Size1 Count (Pack of 1)
MaterialPlastic
ColorBlue Black
Country of OriginUnited States

About 三菱鉛筆

三菱鉛筆 is a leading Japanese brand known for high-quality writing instruments, trusted worldwide for durability and precision.

Compliance & Legal

This is a writing instrument; no medical or health claims. No certifications required. Ensure proper storage; ink may dry if uncapped for long. No condition claims.

Customer Reviews

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FAQ, See What Others Asked

Is the Uni Ball Signo Knock Pen authentic and imported from USA?
Yes. The Uni Ball Signo Knock Pen is sourced directly from authorized US retailers, factory-sealed, with all customs duties paid. It arrives in 27-40 days via ExpressBox, ensuring authenticity and quality.
How long does the ink last with daily use?
Refill cartridges typically last for hundreds of pages, supporting daily writing for 1-2 months depending on usage intensity. Refill availability reduces long-term costs.
Can I use this pen in humid Indian weather?
Yes. Its water-resistant ink resists smudging and running, making it suitable for monsoon conditions and humid environments across India.
Is this pen suitable for students and professionals?
Absolutely. Its precise 0.38mm tip, ergonomic grip, and refillable design make it ideal for detailed note-taking, exams, and office work in India.
What is the benefit of refillable pens over disposables?
Refillable pens reduce waste and cost, supporting eco-friendly habits and offering consistent performance over many refills, ideal for frequent writers.
How do I ensure I buy an original Uni Ball Signo in India?
Order from authorized US retailers via crowcrowcrow, with factory-sealed packaging, all duties paid, and delivery in 27-40 days. Verify batch codes for authenticity.

Frequently bought together

三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink

This item:

三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink

₹1,210

三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink

This item

三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink

₹1,210

Total price:

₹8,380

You save ₹2,520 (23%) Extra

3 items selected

3 items

₹8,380

You save ₹2,520 (23%) Extra

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三菱鉛筆 Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm | Refillable, Water-Resistant, Blue Black Ink
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Spec
Price
₹1,210
₹1,630
₹5,700
₹7,750
₹1,470
₹1,520
₹2,840
₹2,950
₹1,520
₹2,430
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Brand Name三菱鉛筆BICBICBICBICmsiMutualsign
SourceUS RetailUS RetailUS RetailUS RetailUS RetailUS RetailUS Retail
Sold ByCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrowCrow
Imported from USA
₹1,210₹1,630

You Save ₹420

Estimated doorstep delivery by 12 Dec - 25 Dec from USA
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Tracked from USA · duties included
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Your Order Journey: From Purchase to Doorstep

You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you
You Order
Place your order
USA Warehouse dispatch
Packed & shipped
International Air Shipping
Fast transit
Consignment to India Warehouse
Customs cleared
Doorstep delivery
Delivered to you

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vs
₹3,630+ (3× the price)
₹1,210 locked, all-in
Hard to get the original US version in India
Original US version, shipped to your door
Extra pay for Import Duties, GST, and forex fees
One price in INR, no customs charges at delivery
4–12 weeks · No tracking
27-40 days · live tracking
Grey market, no guarantee, no protection, no refund
Sourced from US retailers, India-verified, return available
Lost in transit = ₹0 back
Full protection included