Classic High McKie Permanent marker; Oil-based ink; Type: Macky; Specifications: Main unit; Ink color: light blue; Body length: 5.6 inches (141.8 mm); Shaft diameter: 0.4 inches (11.9 mm); Line width: Fine line: 0.04 - 0.05 inches (1.0 - 1.3 mm); Ultra fine point: 0.02 inches (0.5 mm).