Spectrum Noir Aqua Artist's Water Based Dual Nib Marker Colouring Pens Spectrum Noir Aqua is the water-based artist's marker Each Spectrum Noir Aqua Marker is dual tipped Using water these pens will diffuse and seamlessly blend The pens are acid free and give a stable and long lasting colour They are also odour free Spectrum Noir Aqua is the water-based artist's marker that goes wherever your creativity takes you From sketching and illustration to layout and design to Manga and Comic art and paper-crafts too Whatever your style the Aqua marker combines the performance of water-based colour medium with the easy to use convenience of a marker – to give you outstanding colour results Each Spectrum Noir Aqua marker is dual-tipped - at one end there is a soft brush nib for flexible line control and a more natural art surface feel and at the other a precise fine tip for definition and accurate line work These fantastic water markers are a great addition to conventional water-based paints and other colour media The high quality dyes give flawless even coverage with all the definition and vibrancy you need Using water you can diffuse and seamlessly blend colour to create the lifelike tones and subtle touches that will bring added depth and realism to your work