A dual-purpose ink vessel and pen rest, the Colorverse Shuttle Ink Barrel combines storage with functionality. The grooved cap cradles Colorverse Shuttle Nib Holders and most standard nib holders securely. Unscrew the cap to access a 3.5 ml ink chambersubstantial enough for multiple writing sessions while maintaining a compact footprint compared to full-size bottles. Crafted from durable stainless steel, it resists ink corrosion and provides the weight needed to keep the barrel stable on your desk.