The Brush Sign pens are part of the Recycology range and contain 81% recycled materials. Featuring a unique flexible tip that produces responsive and expression brush work. Each pen includes a brush nib that writes a variable line between 0.7mm and 3mm. Includes water-based ink perfect for graphics, illustrations and calligraphy. This set contains 24 pens with Black, Grey, Light Grey, Pale Brown, Brown, Yellow Ochre, Yellow, Orange, Red, Pink, Burgundy, Pale Pink, Light Green, Green, Olive Green, Turquoise Green, Pale Blue, Grey Blue, Sky Blue, Blue, Blue Black, Violet, Blue Violet and Pink Purple ink.