Designed to combine the art of Asian calligraphy with modern convenience, Fudenosuke brush pens feature flexible tips that let you shift between fine and thick lines with a change in brush pressure. This set features 10 hard-tip pens in black, gray, red, orange, yellow, green, blue, purple, pink, and brown. The water-based pigment ink lets you spread color evenly without bleeding through most papers. Each pen's barrel is made of recycled polypropylene plastic. Non-refillable.