Kuretake-ZIG Clean Color Real Brush Pen — ArtSnacks
Amazon.com : Kuretake ZIG FUDEBIYORI Brush Pens 12 colors set, AP-Certified, Odourless, Xylene free, Flexible Hard brush tip, Effective for both details and larger spaces, Professional quality, Made in Japan : Artists
FUDEBIYORI Metallic Brush Pen – Hitchcock Paper Co.