will these fit Montifiore pens?

Look carefully at your refill and the black end of the Amazon product. If it looks similar and the other end of your refill has the spring, then it probably will. I was unsure when I ordered. When it arrived it look close to the product I had. When I inserted it in my pen, I found it was correct and it worked fine.

Are these compatible with Laban pens?

I measured my ink refills to the nth degree. That’s how I knew they would fit my pens.

work in Thixotropic pen?

Our ballpoint refills are universal refills, you can try them and it should suit your Thixotropic pen. thank you

Will these refills fit a Fisher Space pen?

they look to be 3 7/8 inches long if that helps

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

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Penneed Ballpoint Pen Refills with Spring for B5/B6/B8 Pen, Parker Waterman Compatible Ballpoint Pen Refills Twist Action Medium Point 1.0mm Pack of 10(Black Ink)

Penneed Ballpoint Pen Refills with Spring for B5/B6/B8 Pen, Parker Waterman Compatible Ballpoint Pen Refills Twist Action Medium Point 1.0mm Pack of 10(Black Ink)

Product ID: 260208624

Details

Brand
Penneed
Item dimensions L x W x H
6 x 6 x 111
Item weight
0.4 Grams
Number of pieces
10
Style
Ballpoint

🔩Spring included & pre-installed for perfect fit

🖊️1.0mm medium tip for smooth writing

🛡️Stainless steel body for durability & lightness

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£16.32

Duties & taxes included

In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🖋️ Upgrade your pen game—write like a pro, every time!

READY TO USE SPRING - Each refill comes with a pre-attached spring—no hassle, no missing parts, just seamless replacement.
BULK PACK CONVENIENCE - 10 refills per pack keep you stocked for work, school, or creative bursts—never run out mid-idea.
PREMIUM BUILD QUALITY - Durable stainless steel refill body feels lightweight and exudes quality in every stroke.
SMOOTH SMUDGE FREE INK - Fast-drying black ink ensures clean, professional notes without smears or blots.
UNIVERSAL COMPATIBILITY - Fits Parker, Waterman & Penneed B5/B6/B8 pens—extend your favorite pen’s life effortlessly.

These Penneed ballpoint pen refills feature a 1.0mm medium tip with smooth, fast-drying black ink housed in a durable stainless steel body. Compatible with Parker, Waterman, and Penneed B5/B6/B8 pens, each refill includes a pre-installed spring for easy replacement. Sold in packs of 10, they offer long-lasting, smudge-free writing ideal for professionals and students alike.

Specifications

ASIN	B07KQWN1YS
Brand Name	Penneed
Customer Reviews	4.6 4.6 out of 5 stars (1,219)
Ink Color	Black
Item Dimensions	6 x 6 x 111 millimeters
Item Weight	0.4 Grams
Manufacturer	Penneed
Manufacturer Part Number	B-101
Model Number	B-101
Number of Pieces	10
Package Size Name	Pack of 10
Point Type	Medium
Style	Ballpoint
UPC	723990440082
Unit Count	10 Count

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