TOMBOW-Craft Collection Dual Brush Pens. These pens feature two tips: a high-quality flexible; nylon fiber brush tip; and a fine bullet tip. The resilient nylon brush retains its point; stroke after stroke. The ink is water-based and blendable: use two colors together or use the colorless blender pen. The pen tips self-clean after blending so there is no messy clean-up! Use these pens for rubberstamping; hand-lettering; doodling; journaling; and more. The ink is acid free; non-toxic; and odorless. This package contains ten pens (9 colored; 1 colorless) all in convenient storage pouch. Pouch measures 8x5-1/2in. Available in a variety of color schemes: each sold separately. Conforms to ASTM D 4236. Imported.