2ml sample of Ferris Wheel Press Gossiping Grapevine fountain pen ink, a purple color with wine colored added shimmer.Ferris Wheel Press fountain pen inks are available in many distinct colors that spur excitement, creativity, and a feeling of absolute joy every time you write. The water-based inks are suitable for all fountain pens, and are made with the highest quality dyes and resins, featuring rich and saturated tones.Due to the amount of particulate in this ink used to achieve the sparking look, you may experience restricted ink flow in some of your pens. We recommend shaking the ink thoroughly before filling and gently rolling the pen in your hands often to keep the shimmer effect consistent. This will also help prevent clogging. You will also want to be diligent about cleaning and maintaining your pen when using this ink.