Japan Uni-ball Signo RT1 Gel Pen - 0.5mm Blue Black

Available for Order Ships within 1 - 2 weeks

$3.49

0.28 Baby Pink 0.28 Black 0.28 Blue 0.28 Blue Black 0.28 Green 0.28 Light Blue 0.28 Lime Green 0.28 Orange 0.28 Red 0.28 Violet 0.38 Baby Pink 0.38 Black 0.38 Blue 0.38 Blue Black 0.38 Green 0.38 Light Blue 0.38 Lime Green 0.38 Orange 0.38 Red 0.38 Violet 0.5 Baby Pink 0.5 Black 0.5 Blue 0.5 Blue Black 0.5 Green 0.5 Light Blue 0.5 Lime Green 0.5 Orange 0.5 Red 0.5 Violet

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- Ultra-smooth writing achieved by reducing friction between the pen tip and paper
- Edgeless stainless-steel tip for smoother strokes and improved durability
- Spring-tip mechanism helps prevent ink backflow
- Newly formulated ink offers enhanced smoothness while keeping lines crisp, vivid, and bleed-resistant
- Uses water-based pigment ink with excellent water and light resistance
- Seamless one-motion design with an invisible joint between the grip and barrel
- Sleek, simple shape with a full rubber front grip for comfortable handling
- Available in 0.28 mm, 0.38 mm, and 0.5 mm tip sizes

Brand: Uni Ball

Barcode: 4902778142769

Modal No.: UMN155N05.64

Size: 11×15.4×141.2mm approx.

Manufacturer: Uni Mitsubishi Pencil

Source From: Japan

Made In: Japan

Tip Size: 0.5mm

Ink Color: Blue Black

Compatibility: Uni-ball Signo Knock Gel Pen Refill

Mokhimbonu M.Apr 2, 2026

I have received my order securely wrapped and all the items have arrived in a good condition, that I am truly excited about. Thank you!

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Josie M. S.Oct 15, 2020

I purchased this as a gift for my sister who has yet to make it. Therefore I cannot rate the actual item. However, the seller was very good communicating with me in regards to Covid and shipping issues. The seller was also helpful in obtaining English instructions. I would purchase from them again.