Create magical looking projects with these amazing self outline markers with their colourful built in silver strokes. Just draw with whatever color you like and a coloured outline will magically appear! Silver Linings Outline Markers make art, script and doodles look awesome! This all-in-one self outline marker features 6 colours that lays down a coloured outline as you draw with the silver ink. These outline markers have 6 different complementary colours to provide the outline to the beautiful silver metallic inside. , , The outlining color is automatic as you mark or draw, creating wonderful art or craft projects. In this set of 6 all the inks are acid free as well.