What does blue black mean? Is the ink regular blue or a combo of blue and black? I need just blue.

It means there are blue refills and black refills, all put together in the same package. You have the fun of determining/guessing which are blue and which are black. There are only-blue refills offered on Amazon.

How far away from the tip (point of the pen) is the stopper?

I ordered two different brands, and have co-mingled them, so I can't say for sure, but the one I think you are referring to is about 4.75inches. They are plastic, and I have cut them with scissors to fit, as I have two different kinds of holders, too.

How do you measure the diameter of the diameter of the ball?

all i can say it fits all my pens that are 41/2 long

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JANYUN 100Pcs Ink Pen Refills Replaceable, 0.7mm Black Ballpoint Pen Refill

Product ID: 328168666

Details

Brand
JANYUN
Item Weight
0.07 kg
Item dimensions L x W x H
4.33 x 1.3 x
Number of Pieces
100
Style
Ballpoint

⚡Quick-dry ink prevents smudges

🖤100 black ink refills for long-lasting use

🖊️0.7mm fine tip for precise writing

€ 14.49

Duties & taxes included

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

🖊️ Stay sharp, write smart — never miss a beat with JANYUN refills!

EFFORTLESS PRECISION - 0.7mm fine tip delivers smooth, clean lines every time
CUSTOM FIT FLEXIBILITY - Easily trim refills to perfectly fit your favorite pen
SMUDGE FREE CONFIDENCE - Quick-drying ink keeps your notes crisp and your hands clean
UNIVERSAL COMPATIBILITY - Fits most ballpoint pens, making refills hassle-free
BULK SUPPLY ZERO INTERRUPTIONS - 100 refills ensure you never run out during critical moments

JANYUN 100Pcs Ink Pen Refills offer a premium 0.7mm black ballpoint tip with smooth, quick-drying ink designed for clean, precise writing. Compatible with most ballpoint pens and easily customizable in length, this bulk pack ensures you’re always ready to jot down your next big idea without interruption.

Specifications

ASIN	B095BXYBZB
Best Sellers Rank	#52,221 in Office Products ( See Top 100 in Office Products ) #352 in Ink Pen Refills
Brand Name	JANYUN
Customer Reviews	4.2 4.2 out of 5 stars (1,273)
Ink Color	Black
Item Dimensions	4.33 x 1.3 x 1.3 inches
Item Weight	0.07 kg
Manufacturer	JANYUN
Manufacturer Part Number	2125-2473
Number of Pieces	100
Package Size Name	100 Count
Point Type	Fine
Style	Ballpoint
Unit Count	100 count
Warranty Description	Manufacturer warranty 90 days from date of purchase

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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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€ 14.49

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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