Fudenosuke Hard Tip Brush Pen features a firm brush tip for different lettering and drawing techniques. Create extra-fine, fine or medium strokes by a change in brush pressure. Great for calligraphy and art drawings. Barrels are made of recycled polypropylene plastic. Water-based, pigmented black ink. Fine line. Odorless. Non-refillable. - Black ink - Great for calligraphy and art drawings - Water-based - Pigmented black and grey ink - Made of recycled polypropylene plastic - Fine line - Odorless