Opus 88 Demonstrator Fountain Pen in Dolphin – Fine Point – NEW in Box. Conceived from the flow of ocean currents, with marine life swimming among them. We hope more people will care about ocean issues. The printing difficulty of this pen is very high. You can know the difficulty of printing from the continuous patterns on the upper and lower tubes. The grip section/ pen top are also decorated with ingenuity of dolphins which protect the earth. Dolphins eat ill fish. This helps cut down or eliminate infectious diseases among different fish populations. Enjoy watching your ink color of choice slosh around the massive 3.5mL capacity of this eyedropper filling fountain pen. Engineered for serious fountain pen enthusiasts who love to use their pens to write at extreme length, the Opus 88 Demonstrator is one of the few modern pens to feature an eyedropper filling only system that has a shut-off valve. More commonly found in Japanese vintage fountain pens, the valve regulates the ink flow to prevent ink burping on the page. Opus 88 Demo Eyedropper Filling Fountain Pen Details. Limited Edition of only 88 pens. Barrel and Cap crafted from acrylic resin with swirls of gray and dark grayish black. Nib: Stainless steel #6 nib with plastic feed. Filling System: Eyedropper (includes glass eyedropper) with shut-off valve to safeguard against leakage. Pen Length Closed: 5.63 in. Pen Body Max Diameter: 0.63 in. 9 oz / 23g. Ink Capacity: 3.5ml. Gift boxed with an instruction booklet and eyedropper. AUTHENTIC & GENUINE PRODUCTS. We are an authorized dealer for all the brands we carry. We do not sell imitations of any sort and only carry genuine, original brand name writing instruments and accessories. Please refer to your local import laws for details. We strive for your ultimate satisfaction. We cannot accept opened and used bottles of ink, ink cartridges, used notebooks, engraved pens or pen cleaning supplies. When you receive any new fountain pen, we recommend to inspect it thoroughly and if necessary, lightly dip the nib tip in washable ink to test it. Make sure all of your auctions have ended prior to checking out.