Ecco Pigment Fineliner, 0.3 mm, black

Zebra Sarasa Clip Gel Pen - 0.3 mm - 10 Color Set

Pilot Hi-Tec-C Gel Pen - 0.3 mm - Black

Pilot Acroball T Ballpoint Pen - 0.3 mm - Gunmetal Body - Black Ink

Mr. Pen- Metal Mechanical Pencil Set with Leads and Eraser Refills, 5 Sizes - 0.3, 0.5, 0.7, 0.9 and 2 Millimeters, Sketching/ Drafting Pencil

10 Add Gel Softline Note Pen (0.3 FINE LINER TIP) BLACK, Smooth writing

Deli 10pcs/set Gel Pen 0.3mm Black Ink Refill Signing Pen for Stationery Office Supplies Kids Writing Smooth Ultra Fine Gel Pen - AliExpress

The Top Extra-Fine Pens: 0.25mm, 0.30mm, and 0.38mm

Pentel Energel Gel Pen REFILL - 0.3 - Paper Plus Cloth

Tools I Love #1: Copic Multiliner SP

Pilot BL-GC3 G-Tec 0.3 Pen - Cosmos Bazar Inc.