Pentel Color Brush Pen Art Brush 18 Color Set with Bonus Cartridge AMZ-XGFL18Release date: 2017 12 7Language : Japanese Color 18 color set (includes bonus cartridge) Material Polypropylene (PP) Size 18 pieces Brand Pentel Paint type watercolor [Features] A brush pen that allows for a variety of expressions, such as creating gradations using two colors or creating shading by dipping it in water. [Set contents 1] Art brush body 1 piece each of 18 colors [Set contents 2] 2 bonus cartridges (colors may change) [Pen body size