50ml plastic bottle of Robert Oster Shake N Shimmy shimmer fountain pen ink in the color Violet Dreams.Robert Oster Signature Inks are handmade in Australia. The recyclable PET bottles are manufactured in Australias first carbon neutral plastics plant.Note: Robert Oster is in the process of changing the labels on their bottle and the label on the bottle you receive may vary from what is pictured here.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.A message from Robert Oster:My great interest in fountain pen inks and by extension inks that combine many creative applications began with the birth of my love of fountain pens in 1989.As Robert Oster Signature Inks are quite recent to the market, think of the interim between 1989 and today, as the fertile ground into which my present love of all things ink was seeded and grown.The contents and packaging of my Inks are all nature friendly and the colours a genuine inventory of the Australian palette.Robert Oster Signature originates from one of the most famous wine producing regions of the world, the Coonawarra district of South Australia, an idyllic setting with great influence on the senses. There is my inspiration. Its a joy to share it with you.Robert Oster states For calligraphy & ink art pens, brushes & airbrush applicators. May contain pigments.