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:
BV4.7, B0.6, B0.7, B2.6, BG2.4, G1.4, G1.7, G1.8, Y2.0, Y2.3, YO2.5, O2.2, O2.5, OR1.1, OR2.2, OR2.5, OR3.4, OR3.7, OR3.8, OR7.1, R0.5, R1.7, R1.8, RV0.1, V2.3, V2.7, V2.8, W-G3, W-G5, W-G7, W-G9, and ZERO.