G Project - Panel lining! An easy yet effective way to give your models that extra bit of flair. Here are some of the more common options: 1) Panel- lining Gundam Marker (スミいれ用)

HOW to Panel Line a Gundam TIPS for better Gunpla Panel Lining

Panel Lining a Model

Gundam Marker: Extra Fine Tip (Solid Panel Lining)

For Bandai MG 1/100 Unicorn Gundam Model Gatling Machine Gun Belt Bullet Chain. For Bandai RG HG 1/144 Origin Gundam Zaku Gatling Machine Gun Weapon

For Bandai Gundam Mr.Hobby Gundam Marker Pen Fine Tip For Panel Line GM01 Model

Gunpla Tutorial: How to panel line

The Gunpla Panel Lining: Gunpla's Guide to Markers and Paints

If you are new to Gunpla then I suggest you use this pen for panel lining. It may be lazy but it works. : r/Gunpla

Panel Lining for Gunpla 101 - Gunpla 101

Panel Lining for Gunpla 101 - Gunpla 101

HOW TO PANEL LINE GUNDAMS: THE LAZY ARSE WAY! - PANEL LINING TUTORIAL

SM SunniMix Model Panel Line Pen Infiltration Line Model Crafts : Arts, Crafts & Sewing