Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10
Uniball

Uni Signo RT1 Gel Ink Pen Ultra Fine 0.38mm Blue Black Box of 10

$21.07
$21.07
RRP $23.87
Add items to a quote for bulk pricing, approvals, or purchase orders.

SKU: UMUMN155-038BB

UPC: 34902778142678

MPN: UMN155-038BB

Ultra-fine retractable gel in a sophisticated blue/black shade

The Uni-Ball Signo RT1 UMN-155 in 0.38mm blue/black delivers smooth Signo gel at a hairline-thin tip with the RT1 click mechanism, combining ultra-fine precision with the sophisticated blue/black ink tone favoured for professional writing.

Blue/black at 0.38mm ultra fine in the Signo RT1 produces a near-hairline line in a rich, dark ink tone that reads professionally and is particularly popular for formal correspondence, contracts, and any writing where a fine but authoritative line is needed. Compatible with UMR-85 refills. Supplied in a box of 10.

  • Ultra-fine 0.38mm tip with sophisticated blue/black Signo gel ink
  • Retractable click mechanism - no cap to remove or lose
  • Blue/black ink - darker than navy, warmer than pure black
  • Smooth Signo gel ink - vivid and fast-drying
  • Compatible with UMR-85 refills
  • Box of 10
  • Formal correspondence and contracts requiring an ultra-fine professional line
  • Ultra-fine note-taking with a sophisticated blue/black ink
  • Compact annotations in narrow margins
  • Professional writing where precision and ink colour both matter
  • Everyday use for anyone who prefers blue/black at the finest retractable tip

Shipping is kept simple with flat rates for selected areas and free shipping where applicable. Large, bulky, rural or out-of-area orders may require additional freight, and our team will contact you if this applies. For a more specific estimate, simply add this product to a quote.

Specifications

Brand: Uni-Ball

MPN: UMN-155-038

SKU: UMUMN155-038BB

Pen Type: Retractable gel ink rollerball

Tip Size: 0.38mm (Ultra Fine)

Ink Colour: Blue/Black

Ink Type: Gel ink

Compatible Refill: UMR-85

Pack Quantity: Box of 10

EAN: 4902778150474

Always Here to Help

Based around the Gold Coast, our customer support team brings deep office supplies knowledge, with most members having more than 10 years of industry experience. We are more than customer service agents. We are experienced office supply experts ready to help. Contact us below.

Contact Support Read all FAQs

Shipping & Delivery

Delivery time depends on your location, the size of your order, and the shipping option selected at checkout. For in-stock items, standard metro delivery in QLD, NSW and VIC is usually 1 to 7 business days. South Australia, Tasmania, Western Australia and the Northern Territory are generally 3 to 12 business days. Express delivery for eligible parcels under 3kg is usually 1 to 4 business days in QLD, NSW, ACT and VIC. Delivery estimates apply to in-stock items only and may vary due to carrier conditions or delays.

If you need to make a change to your order, please contact our team as soon as possible. Once an order has been processed or dispatched, changes may no longer be possible. You can contact us through our Contact Us page for assistance.

Mega Office Supplies ships orders Australia wide and occasionally internationally. The best avenue would be to contact us so we can customise a specific quote for you. Please note that associated international duties, taxes and levies will be the responsibility of the customer.

Returns, Refunds & Replacements

Mega Office Supplies accepts change-of-mind returns for unopened and unused products within 14 days from the invoice date, provided the item is returned in its original packaging and in resalable condition. Original shipping costs are not refundable, return shipping is the customer’s responsibility, and a restocking fee may apply depending on the product type and supplier. Some items, including electronics, assembled or installed furniture, food, beverages, medicines, custom-made products, and certain bulk or special-order items, are not eligible for return unless required under Australian Consumer Law.

If your order arrives faulty, damaged, or incorrect, please contact Mega Office Supplies as soon as possible. Where required under Australian Consumer Law, a repair, replacement, or refund will be offered. In these cases, Mega Office Supplies will cover reasonable return shipping costs, and photographic evidence may be requested to help process the claim. Items should be reported within a reasonable timeframe after delivery.

Keep Browsing

Shop All