Pelikan's Edelstein Premium Fountain Pen Ink Collection, presented in its beautiful bottle which would grace any desk, is formulated with a special ingredient to provide an extra smooth writing experience and high-performance care for your fountain pens. Each one of these vibrant colors corresponds to the beautiful hue of a precious gem. The name Edelstein (pronounced 'EY-dell-shtine') comes from the German word for gemstone. The classy, sophisticated design of the bottle makes it worthy of display as a treasured ornament on your desk. Available in colors sapphire (blue), Onyx (black), Mandarin (orange), Ruby (red), Aventurine (green), Jade (light green) and Topaz (blue-violet).