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 has a vibrant tone of Blue Suede colour. This colour is closer to a teal blue/green, but it does have a nice rich tone, the colour is deep for business writing. The drying time about 5 to10 seconds when used with a fine or medium nib. 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.