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:
B0.3, B4.3, B4.6, B4.7, BG0.7, BG0.8, BG2.7, BG7.0, BG7.2, BG7.3, BG7.6, BV2.0, BV2.2, C-G0, C-G1, C-G3, C-G5, C-G7, C-G9, G0.1, G0.4, K, O7.1, O7.3, O7.7, O7.8, OR1.3, OR2.3, OR2.6, OR3.2, OR4.2, OR4.4, OR4.7, OR4.8, OR7.2, OR7.4, OR7.6, R0.1, R0.4, R0.6, R5.1, R5.3, R5.5, R5.7, R-G3, R-G5, R-G6, R-G7, RK, V4.1, V4.3, V7.6, Y2.2, Y8.6, Y8.7, YG2.1, YG2.3, YG2.5, YG8.3, YG8.5, YG8.7, YO2.2, YO2.3, and YO2.7.