Patented free flow ink system: Maintains consistent ink flow and maximizes ink usage for longer marker life
Customizable double-ended markers: Combine any two half markers to create unique markers with your choice of colors and nibs
Brush tip design: Provides smooth, fluid application and control for detailed work
Easy ink replacement: Replace only the ink cartridge, not the entire marker, for mess-free refills
High-quality Japanese nibs: Ensures precise, balanced, and comfortable writing or drawing experience
Summarized by Shop
B6.1 Shark is 1 of 96 NEW OLO colors released in 2026, expanding the OLO color system to 256 total colors.
Half-markers: One OLO half-marker has 2ml of ink and delivers over 97% more usable ink than traditional alcohol markers. Use an OLO Connector Ring to combine any two half-markers for a double-ended marker with a total of 4ml of ink.
