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Uni-Ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black
Uni-Ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black
Uni-Ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black
Uni-Ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black
Uni-Ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black
Uni-Ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black

Uni-Ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black

(1,870 reviews)

Meet the Uni-ball Signo RT1 Gel Pen, the writing tool designed to make your everyday writing tasks effortless and enjoyable. Its sleek design feels comfortable in your hand for those long writing sessions or quick jot-downs alike. No more accidental clicks in your pocket or bag either—the integrated pocket clip doubles as the push button, keeping it secure and functional wherever you go.What truly sets this pen apart is its pigment-based gel ink, which is not only beautifully smooth but also resistant to water, fading, and even check washing, making it ideal for everything from journaling to signing important documents. And thanks to the pen tip’s ingenious rounded "edgeless" design, you'll enjoy an effortlessly smooth glide across the page every single time. Whether you're jotting down quick thoughts, planning, or tackling detailed notes, this pen is built to keep up with you.Features: Pigment-based gel ink Acid-free, water-resistant, fraud-resistant, fade-resistant, and archival safe 0.5 mm conical nib Retractable with clip Rubber grip Listing is for one Uni-ball Signo RT1 Gel Pen, other pictured items not included.

Meet the Uni-ball Signo RT1 Gel Pen, the writing tool designed to make your everyday writing tasks effortless and enjoyable. Its sleek design feels comfortable in your hand for those long writing sessions or quick jot-downs alike. No more accidental clicks in your pocket or bag either—the integrated pocket clip doubles as the push button, keeping it secure and functional wherever you go.What truly sets this pen apart is its pigment-based gel ink, which is not only beautifully smooth but also resistant to water, fading, and even check washing, making it ideal for everything from journaling to signing important documents. And thanks to the pen tip’s ingenious rounded "edgeless" design, you'll enjoy an effortlessly smooth glide across the page every single time. Whether you're jotting down quick thoughts, planning, or tackling detailed notes, this pen is built to keep up with you.Features: Pigment-based gel ink Acid-free, water-resistant, fraud-resistant, fade-resistant, and archival safe 0.5 mm conical nib Retractable with clip Rubber grip Listing is for one Uni-ball Signo RT1 Gel Pen, other pictured items not included.

$1.06 - $19.30

in 11 offers

Size:

0.5 mm

Uni-Ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black

$1.06

(1,870 reviews)

Meet the Uni-ball Signo RT1 Gel Pen, the writing tool designed to make your everyday writing tasks effortless and enjoyable. Its sleek design feels comfortable in your hand for those long writing sessions or quick jot-downs alike. No more accidental clicks in your pocket or bag either—the integrated pocket clip doubles as the push button, keeping it secure and functional wherever you go.What truly sets this pen apart is its pigment-based gel ink, which is not only beautifully smooth but also resistant to water, fading, and even check washing, making it ideal for everything from journaling to signing important documents. And thanks to the pen tip’s ingenious rounded "edgeless" design, you'll enjoy an effortlessly smooth glide across the page every single time. Whether you're jotting down quick thoughts, planning, or tackling detailed notes, this pen is built to keep up with you.Features: Pigment-based gel ink Acid-free, water-resistant, fraud-resistant, fade-resistant, and archival safe 0.5 mm conical nib Retractable with clip Rubber grip Listing is for one Uni-ball Signo RT1 Gel Pen, other pictured items not included.

Meet the Uni-ball Signo RT1 Gel Pen, the writing tool designed to make your everyday writing tasks effortless and enjoyable. Its sleek design feels comfortable in your hand for those long writing sessions or quick jot-downs alike. No more accidental clicks in your pocket or bag either—the integrated pocket clip doubles as the push button, keeping it secure and functional wherever you go.What truly sets this pen apart is its pigment-based gel ink, which is not only beautifully smooth but also resistant to water, fading, and even check washing, making it ideal for everything from journaling to signing important documents. And thanks to the pen tip’s ingenious rounded "edgeless" design, you'll enjoy an effortlessly smooth glide across the page every single time. Whether you're jotting down quick thoughts, planning, or tackling detailed notes, this pen is built to keep up with you.Features: Pigment-based gel ink Acid-free, water-resistant, fraud-resistant, fade-resistant, and archival safe 0.5 mm conical nib Retractable with clip Rubber grip Listing is for one Uni-ball Signo RT1 Gel Pen, other pictured items not included.

Price comparison

Price data powered by pricesAPI.io

Last updated at 12/05/2026 14:35:51

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
office-japan.jp

$1.06

Stationery and office supplies mail order "Office Japan" Mitsubishi UMN-155N-38 Blue Black 64 UMN155N38.64 4902778142677

Delivery $27.85

Bunbougu

$2.80

Uni-ball Signo RT1 UMN-155 Gel Pen - 0.38 mm Blue Black

Delivery between 18–26 May $6.85

Bunbougu

$2.80

Uni-ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black

Delivery between 18–26 May $6.85

Bunbougu

$2.80

Uni-ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black

Delivery between 18–26 May $6.85

Officeworks

$3.00

Uniball Uni-Ball Signo RT1 Retractable 0.38mm Gel Pen Blue Black

Delivery between 14–23 May $7.95

Paper Whisper

$3.74

Uni-ball Signo RT1 Gel Pen 0.38mm Blue Black

Free delivery

IRO stationery NZ

$5.93

Uni-ball Signo RT1 UMN-155 Gel Pen - 0.38 mm Blue Black

Delivery $28.14

awesomepens.co.uk

$5.97

Uni-Ball Signo UMN-155 RT1 0.38mm Gel Pen

Delivery $5.60

cultpens.com

$6.06

Uni-Ball Signo Umn-155 Rt1 0.38mm Gel Pen - Blue Black / Single

Delivery $25

Snapklik AU

$13.81

Uni Ball Signo Knock Ballpoint Pen RT1 0.38mm Color, Blue Black

Delivery $27.66

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Advance MechanismRetractable, Push-Button
Ink TypeGel Ink
Refill TypeDisposable
Tip ShapeConical
Tip TypeBall

Price comparison

Updated 24 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
office-japan.jp

$1.06

Stationery and office supplies mail order "Office Japan" Mitsubishi UMN-155N-38 Blue Black 64 UMN155N38.64 4902778142677

Delivery $27.85

Bunbougu

$2.80

Uni-ball Signo RT1 UMN-155 Gel Pen - 0.38 mm Blue Black

Delivery between 18–26 May $6.85

Bunbougu

$2.80

Uni-ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black

Delivery between 18–26 May $6.85

Bunbougu

$2.80

Uni-ball Signo RT1 UMN-155 Gel Pen - 0.38 mm, Blue Black

Delivery between 18–26 May $6.85

Officeworks

$3.00

Uniball Uni-Ball Signo RT1 Retractable 0.38mm Gel Pen Blue Black

Delivery between 14–23 May $7.95

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

Advance MechanismRetractable, Push-Button
Ink TypeGel Ink
Refill TypeDisposable
Tip ShapeConical
Tip TypeBall