Half-markers: One OLO half-marker has 2ml of ink, plus over 90% more usable ink than other alcohol markers. Use an OLO Connector Ring to combine any two half-markers for a double-ended marker with 4ml of ink. Combine half-markers to create unique double-ended markers that feature your choice of colors and nibs.
Colors included in Collection:
B2.2, BG2.3, BG2.1, BV2.3, BV2.6, O2.4, RV0.2, RV0.4, RV0.6, V0.3, V0.4, V1.1, V1.6, W-G1, Y1.1, Y1.2