Create Custom Color Palettes Using Dual Brush Pens - Tombow USA Blog | Brush pen, Dual brush pens, Tombow dual brush pen
Amazon.com : Tombow Dual Brush Pen Art Markers,96 Color Set with Desk Stand and Tombow Blending Kit, Palette, Mister, & Colorless Blender, 1-Pack Bundle : Arts, Crafts & Sewing
Tombow Color Chart (+ Printable to track your 108 or 96 dual brush pens)