Are these refillable?

Yes. They are refillable. For blue ink look for UMR83E.33.

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Uni-ball Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Blue Ink, UMN-307-38, Value Set of 5

Uni-ball Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Blue Ink, UMN-307-38, Value Set of 5

Product ID: 282282135

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Details

Brand
uni-ball
Writing instrument form
Ballpoint Pen
Colour
Blue
Ink colour
Blue
Age range (description)
Adult

💧Smooth, smudge-resistant gel ink

🔄Retractable design for on-the-go use

🖊️0.38mm Ultra Micro Point for precision

Description

🖋️ Write sharp, write smart — precision that keeps up with your hustle!

COMFORT GRIP - Textured rubber grip reduces hand fatigue during long writing sessions, combining style with function.
PINPOINT PRECISION - Ultra micro 0.38mm tip delivers crisp, clean lines for flawless note-taking and detailed work.
VALUE PACK ADVANTAGE - Set of 5 pens keeps you stocked and ready, so you never run out during critical moments.
EFFORTLESS CONVENIENCE - Retractable mechanism means no caps to lose—perfect for busy professionals on the move.
SMUDGE FREE CONFIDENCE - Advanced gel ink formula dries quickly, ensuring your writing stays sharp without annoying smears.

The Uni-ball Signo 307 is a premium retractable gel ink pen featuring an ultra micro 0.38mm tip for precise, smudge-resistant blue ink writing. Designed with a textured rubber grip and a convenient retractable mechanism, this value pack of 5 pens is ideal for professionals who demand accuracy and reliability in every stroke.

Specifications

Manufacturer	Uni-ball
Brand	uni-ball
Model number	SG_B06Y3WFXGD_US
Product Dimensions	13.79 x 5.99 x 1.6 cm; 18 g
Color	Blue
Closure	Retractable
Grip Type	Textured rubber
Material Type	Gel
Number of Items	5
Size	5 Count (Pack of 1)
Point Type	Ultra Micro
Line Size	0_3mm
Ink Color	Blue
Manufacturer Part Number	UMN30738.33*5
Item Weight	18 g

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