Mr. Hobby Gundam Marker Pen (Standard & Metallic) GM04~19 – RC Papa
Amazon.com: Mr. Hobby GSI Creos Gundam Marker EX White Gold XGM07 and Yellow Gold XGM08 With Original Stylus Ballpoint Touch Pen : Arts, Crafts & Sewing
Mr. Hobby Gundam Marker GMS105 Basic Set (6pcs) HG MG PG Color Pen GSI Creos Action Model Kit
Amazon.com: GSI Creos Gundam Marker Ultra Fine Set (6 Markers) : Arts, Crafts & Sewing
Gundam Marker Extra Thin Type for Panel Lines Set (Renewal) | HLJ.com