TOMBOW DUAL BRUSH -PEN BLENDER ■ Colorless blender softens and blends colors, creating a watercolor effect. Ideal for fine artists and crafters. ■ Flexible brush and fine tip in one. ■ Acid-free and odorless. TOMBOW DUAL BRUSH -PEN BLACK ■ Tombow ABT Dual Brush pens are wonderful for illustrating, drawing, scrap-booking, and rubber stamping, calligraphy. ■ Flexible and resilient nylon brush tip for creating fine, medium, and broad strokes. ■ Sturdy bullet tip for drawing consistent fine lines. ■ Water-based, blendable, non-toxic, acid-free, odorless ink.