This marker pack contains 12 of The Art Studio's Graphic ProDuo Markers, which are alcohol-based felt tip pens that are the ideal choice for artists wanting a high-quality, versatile marker. As the name implies, each pen has a different shaped nib at each end - one end is a fine tip and great for small details, while the other is broad and perfect for filling in large blocks of colour. They can be used on all sorts of surfaces like paper, plastic, cloth and metal, as the alcohol in them dries very quickly and stays permanent. You can even blend colours together! This pack comes with all the basic colours you need for your art - Warm Grey, Lemon Yellow, French Vermilion, Tender Pink, Deep Red, Indian Blue, Prussian Blue, Light Violet, Vivid Green, Deep Green, Potato Brown and Black.