OLO Medium Cool Grey Marker (Chisel C-G3 and Brush C-G5)

OLO alcohol markers feature a patented free-flow ink system comprised of three pieces: OLO nib, OLO cap, and OLO’s ink cartridge. This ink cartridge technology allows for an unparalleled 90% ink usage and consistent ink flow throughout the cartridge's lifetime. Once the marker’s ink cartridge runs out of ink, keep the cap and nib and simply replace the ink cartridge.