Brustro Metallic Watercolours are made of mica pigments and gum arabic. Carefully selected by a team of experts, these metallic watercolours are highly pigmented and give a lustrous effect for that rich, shimmery colour. This set of 12 is perfect to jazz up your art supplies, easy to blend and fun to use, especially for all kinds of watercolour techniques, calligraphy, card making and journaling.