Hi. Does it fit for Vector rollerball?

If you are talking about a Parker Vector then yes it fits

Where are these refills made?

I believe it is by a company called DOKUMENTAL in Germany.

Why are these refills 4.5 inches long when parker refills are 3.8 inches? see unibene asin b07q2tnnrc.

These refills are rollerball refills. For b07q2tnnrc, they are ballpoint refills.

Is the blue a dark blue or blue/black or a light blue? Thanks.

Hi Wally. That's a difficult question to answer as color is subjective. It is not a dark, blue black color, nor is it light blue like the sky. It is a medium blue, leaning more towards the dark spectrum of color than the light. Not sure how helpful that was. I'd say slightly darker than the cap color.

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Unibene Parker Compatible Rollerball Refill 6 Pack, 0.5mm Fine Point - Black, Smooth Writing Replaceable German Gel Ink Pen Refills for IM Sonnet Urban Pens

Unibene Parker Compatible Rollerball Refill 6 Pack, 0.5mm Fine Point - Black, Smooth Writing Replaceable German Gel Ink Pen Refills for IM Sonnet Urban Pens

Product ID: 134381213

Details

Brand
Unibene
Item Weight
0.03 Kilograms
Number of Pieces
6
Point Type
Fine
Style
F

⏳800+ meters long-lasting ink flow

🖊️0.5mm fine point for precise writing

🇩🇪German quick-dry, fade & water resistant ink

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Description

🖋️ Elevate every signature with precision and style—don’t let your pen run dry!

ENDURANCE CHAMPION - Write over 800 meters per refill—because your ideas deserve to last.
METAL SHAFT DURABILITY - Engineered to prevent leaks from pressure, impact, or temperature changes—reliability you can trust.
PREMIUM GERMAN GEL INK - Quick-drying, smudge-proof, and water-resistant for professional-grade documents.
SMOOTH SILENT WRITING - Experience flawless ink flow with zero skips or scratches for a premium feel.
UNIVERSAL COMPATIBILITY - Fits all Parker rollerball pens—upgrade your favorite executive pen effortlessly.

The Unibene Parker Compatible Rollerball Refill 6 Pack features 0.5mm fine point tips delivering smooth, skip-free writing. Designed to fit all Parker rollerball pens, these refills use premium German gel ink that dries quickly and resists fading and water damage. Each refill supports over 800 meters of writing, housed in a durable metal shaft to prevent leaks under pressure or temperature changes—perfect for professionals who demand reliability and elegance in every stroke.

Specifications

ASIN	B07RK1YLKM
Best Sellers Rank	#31,062 in Office Products ( See Top 100 in Office Products ) #699 in Gel Ink Pens
Brand Name	Unibene
Customer Reviews	3.9 3.9 out of 5 stars (997)
Ink Color	Black
Item Weight	0.03 Kilograms
Manufacturer	Unibene
Manufacturer Part Number	1
Number of Pieces	6
Package Size Name	6 Pack
Point Type	Fine
Style	F
UPC	673169578439
Unit Count	6.0 Fluid Ounces

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B/.26

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

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