Private Reserve is a maker of superior quality ink for fountain pens. All private reserve inks are fast drying, non-clogging and non-fading that provides excellent coverage and a smooth flow on rough papers. It has a neutral pH which helps to write even on non-acidic papers. This beautifully designed ink bottle from Private Reserve that has a pulsating tone of Black colour. If you're looking for a rich, dark black ink for your fountain pen, then the Velvet Black is the right option. The flow is excellent. No feathering, but there is a significant amount of bleed-through if you use it with a broader nib. It is a good ink for a medium or fine nib. Use if on heavier than normal paper. If you wish to keep the pen aside, it is advisable to wash the ink clean and store.The ink is not waterproof. The bottle contains 60 ml of ink and can be used with any kind of fountain pen. The information stated here is only indicative. The drying time, the saturation and the final colour on the paper may vary based on the quality of paper used, the size of the nib and the make of the nib. All inks are made in the USA.