30ml dropper bottle of iridescent liquid colour These special Iridescent colours have a light background and the colour shines through when light hits the surface of your lure, very much like the scales of a fish or the surface of a shell. They can also be mixed with our standard colours for a special effect. Iridescent Blue is a similar colour to Redgill's blue pearl Iridescent Violet is a similar colour to Redgill's red pearl Each bottle is enough to colour approx. 10 litres of Liquid Plastic.