What kind of ink cartridge refill does this pen take?

It takes the Sheaffer K-refill. However, it will also take a Caran d'Ache Goliath refill and a Parker refill, if you cut a little of the plastic top off.

what size eraser refill does the pencil take?

It's a pen and doesn't use an eraser.

What is the ink color? black or blue?

These pens come with a black medium refill installed.

Can you explain the three dimension measurements (lxwxh). i understand the 1st one (length). how are the other two measured?

I'm sorry, I don't have an answer. All I can tell you is that it is my favorite writing instrument. I like the way it feels in my hand.

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🖊️ Write Your Success Story in Style

SLIM STYLISH PROFILE - Designed to slip seamlessly into your portfolio or pocket calendar, combining elegance with everyday practicality.
PREMIUM WRITING EXPERIENCE - Medium 0.9mm black ballpoint tip delivers crisp, consistent lines for flawless note-taking and signing.
EFFORTLESS ONE HANDED CLICK - Activate your pen tip instantly with a smooth push-button mechanism—because your ideas shouldn't wait.
LUXURY GIFT READY PACKAGING - Arrives in a premium gift box—perfect for impressing colleagues, clients, or that professional student in your life.
LIFETIME MECHANICAL WARRANTY - Confidence guaranteed with Sheaffer's lifetime warranty on mechanical failure for purchases after Sept 2019.

The Sheaffer Sentinel Blue Ballpoint Pen features a durable blue resin barrel with chrome nickel-plated trim, a convenient push-button mechanism for instant tip activation, and a slim profile designed for professional use. Packaged in a luxury gift box and backed by a lifetime mechanical warranty, it includes one black Sheaffer ‘K’ ballpoint refill, making it the perfect blend of style, reliability, and everyday functionality.

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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B/.85

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Panamastore

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TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

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Manufacturer	A. T. Cross Co.
Brand	Sheaffer
Item Weight	0.529 ounces
Product Dimensions	7.2 x 2.68 x 1.65 inches
Item model number	E23217351
Is Discontinued By Manufacturer	No
Color	Blue
Closure	Button
Grip Type	Contoured
Material Type	Resin
Number of Items	1
Size	1 Count (Pack of 1)
Point Type	Medium
Line Size	0_9mm
Ink Color	Black
Tip Type	Ball Pen
Manufacturer Part Number	E23217351

Sheaffer Sentinel Blue Ballpoint Pen with Chrome Trim

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