Tombow USA on Twitter: "We love this Dual Brush Pen Pastel swatch page in @mollykateillustrates' journal! How do you keep track of your Dual Brush Pen colors? #tombow #tombowusa #regram 💕 #tombowdualbrushpens #
Pam's Cool Stuff for Raggedy Artists: Brush Pen Markers: Are they really comparable to watercolors?
Tombow Color Chart (+ Printable to track your 108 or 96 dual brush pens)