YSTUDIO - Classic Revolve Portable Fountain Pen (Brass)Brass fountain pen with classic design, portable version creates a new way to bring it with you. YSTUDIO Brass fountain pen is your best choice of EDC pen. This pen is made of solid brass and comes with one maple pen case in black color. If youre looking for Desk Fountain Pen or other color, YSTUDIO also provides a variety of unique fountain pens.