Emerald is a brilliant green with good shading and will flow nicely in your fountain pen. Like all of the Robert Oster Signature ink range, Emerald is hand made in South Australia and colours are inspired by the stunning Australian landscape. The inks are non-toxic and ideal for writing and calligraphy. The palette of colours is vibrant and intense. Packaging features a 50 ml bottle made of recyclable plastic making it safe for travel. The long narrow ink bottle design also allows for easy refilling of your fountain pen.