Shaft diameter 15mm (excluding clip) Weight 25g. Black Precious Resin, Platinum Plated Fittings. Platinum Plated Clip with Synthetic Black-Coloured Gemstone. Three Platinum Plated Rings with Embossed Montblanc Brand Name.The item "Montblanc Rollerball Boheme Onyx Black/Platinum withBox (5098)" is in sale since Tuesday, July 30, 2019. This item is in the category "Collectibles\Pens & Writing Instruments\Pens\Rollerball Pens\Montblanc". The seller is "iskijor23" and is located in Pine City, Minnesota. This item can be shipped to United States.