Expert, versatile and boasting an unrivaled colour spectrum, the Winsor & Newton Promarker is a must-have professional quality addition to your marker collection.Promarkers contain malleable alcohol-based translucent ink, which can be blended into endless tones by using together or with the Blender pen.Each pen is twin-tipped, with a broad chisel nib and fine bullet nib. These high quality nibs provide consistent, streak-free coverage.Use on paper, bristol board and other surfaces intended for use with ink. You can also experiment by using on on ink-resistant surfaces like acetate, glass, plastic and wood.Set 1 contains 13 markers: Canary, Bright Orange, Ruby, Rose Pink, Amethyst, Sky Blue, Indigo Blue, Lime Green, Forest Green, Henna, Cool Grey 4, Black and the colourless Blender.