Classic Revolve Fountain Pen BrassFor YSTUDIO's 10th anniversary, they created the Classic Revolve Fountain Pen Brass, following the studio's most popular hexagonal design. Pure and simple, with a thicker body and just the right balance of weight and solidity. It also comes with a converter, allowing the pen to be used with bottled inks. The Classic Revolve Fountain Pen is the first that uses YSTUDIO's very own nib, embossed with their first logo from the early days of the brand's