Uni-ball Signo UMR-85N Gel Ink Pen Refill 0.5mm - Box of 10 | Black, Blue-Black, Blue and Red | Compatible with UMN-155-05 UMN-105 UMN-152 | Japan Mitsubishi Pencil

More Ink, Less Interruption - Uni-ball Signo UMR-85N Gel Refill Box of 10

Introducing the Uni-ball Signo UMR-85N Gel Ink Pen Refill - the authentic Japan Mitsubishi Pencil replacement refill for the iconic uni-ball Signo retractable gel pen series. Available in four ink colours - Black, Blue-Black, Blue, and Red - each box contains 10 refills at 0.5mm ball diameter. The UMR-85N is the large-capacity successor to the UMR-83, delivering more ink per refill for longer writing sessions. Compatible with UMN-155-05, UMN-105, UMN-152, and all standard Signo retractable bodies marked as UMR-85N compatible.

• 4 Ink Colours - Black, Blue-Black, Blue and Red: Black for exams and professional documents (24 sheets per refill). Blue-Black for sophisticated handwritten documents and signatures (64 sheets). Blue for notes and colour-coded study systems (33 sheets). Red for marking, corrections, and emphasis (15 sheets). Each colour is presented in a matching colour-coded retail box with the uni-ball Signo logo and UMR-85N model number.
• Large-Capacity UMR-85N - More Ink Than UMR-83: The UMR-85N is the large-capacity upgrade from the standard UMR-83 refill - the longer refill body holds significantly more gel ink, extending writing sessions and reducing how often you need to swap refills. The transparent lower barrel lets you monitor ink levels at a glance. For high-volume writers, exam candidates, and anyone who hates running out of ink at a critical moment.
• Compatible with Signo Retractable Bodies - UMN-155-05, UMN-105, UMN-152 and More: The UMR-85N is the standard replacement refill for Mitsubishi Pencil's Signo retractable gel pen range - including the UMN-155-05 (Signo RT1 0.5mm), UMN-105 (Signo RT 0.5mm), and UMN-152 (Signo 307 0.5mm). Simply click out the old refill and click in the new one - no tools, no mess, no waste.
• Uni-ball Signo Gel Ink - Smooth, Skip-Free, Water-Resistant: The UMR-85N uses Mitsubishi Pencil's premium Signo gel ink formula - smooth, consistent flow from first stroke to last, with no skipping, no blobbing, and no feathering on standard paper. Ink is water-resistant once dry. The 0.5mm ball delivers a precise, clean line ideal for exam answer sheets and dense study notes.
• Japan Mitsubishi Pencil Authentic - Box of 10, Better Value: Each box contains 10 authentic Japan Mitsubishi Pencil UMR-85N refills - the same refill supplied with new Signo pens, guaranteed genuine. Buying in a box of 10 delivers significantly better value than single refills. Stock up in all four colours and never run dry at a critical moment.