Ohuhu Honolulu markers are dual tipped, with a chisel and brush. The alcohol based ink dries instantly, but colors still blend beautifully. Works best with Ohuhu's bleed proof marker pads. Conforms to ASTM D-4236.
OLO Markers are premium alcohol-based markers that feature OLO's patented cartridge free-flow ink system which maintains consistent, controlled ink flow throughout the life of the ink cartridge. Each OLO half marker contains 2ml of ink.