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:
B0.7, B2.6, BG2.4, G1.4, G1.7, G1.8, O2.2, OR7.1, R1.7, R1.8, RV0.1, V2.3, V2.7, V2.8, W-G3, W-G5