Leonardo MZ Grande 2.0 Fountain Pen - Baobab CT (Special Edition)The Leonardo Momento Zero Grande 2. 0 is an evolution of the Momento Zero Grande series that shares same sizes with Momento Zero Grande but with a new ink window located on the grip section and not visible when the pen is capped. The main feature of the 2. 0 is the transparent ink window that indicates the level of ink contained inside the barrel. The writing experience also gets an upgrade with Leonardo's "La Fenice" (Phoenix) #6 size nibs available