will they fit Preston dual ballpoint stylus(promotional pens)

Good question. I do not know since I bought the refills for a different brand of pen and do not have a Preston type pen....

Will these fit the true utility 6 in 1 muti tool pen?

Yes they do fit the true 6 in 1 pen. They are slightly short but they do work.

Does the black piece on the end come off? I have a really nice pen (gift) that uses a refill like this but does not have a piece on the end.

Yes, it does come off. The refill is 2 5/8 inches long after taking it off.

Does this refill fit a Helios pen?

No. the refills for Helios pen is bigger than this item.

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

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Tangula Cable 79

Product ID: 758822517

Details

Brand
AIYIBEN
Colour
Black Refills
Ink colour
Black
Item dimensions L x W x H
7 x 0.2 x 0.2
Item weight
1 Grams
Point type
Broad

🔋10-pack long-lasting refills

⚙️durable metal tip

🖊️0.7mm precision core

Description

🖋️ Upgrade your pen game—because your ideas deserve the smoothest flow!

BUILT TO LAST - Metal tip ensures durability for extended, reliable use
READY FOR ACTION - Includes 10 high-quality black ink refills to keep you writing without interruption
COMPACT CONVENIENT - 2.75-inch length refills fit perfectly in your favorite pens for on-the-go productivity
EFFORTLESS PRECISION - 0.7mm core delivers smooth, consistent lines without skips or smudges
UNIVERSAL COMPATIBILITY - Designed to fit Multi Tool Pens and diamond crystal stylus pens seamlessly

The Tangula Cable 79 offers 10 durable metal-tip ballpoint pen refills with smooth black ink and a precise 0.7mm core, designed for seamless compatibility with Multi Tool and diamond crystal stylus pens, ensuring uninterrupted, professional-grade writing performance.

Specifications

ASIN	B07GZJ9TYW
Brand Name	AIYIBEN
Colour	Black Refills,10 pack
Customer Reviews	4.6 4.6 out of 5 stars (1,326)
Drill Point	Broad
Ink Colour	Black
Item Dimensions	7 x 0.2 x 0.2 centimetres
Item Weight	1 Grams
Manufacturer	AIYIBEN
Model Number	43396-132497
Style	Ballpoint
Unit Count	10.0 count

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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.

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The product quality is outstanding. Exactly what I needed for my work.

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