Please note that some colors may be out of stock and backordered for larger Chisel Replacement Ink sets. Colors that are not included in your order will be mailed separately as soon as they are available.
Replacement Ink Cartridges hold 2ml of OLO alcohol ink. Marker cap, nib, and Connector Rings are not included with Replacement Ink Cartridges. However, additional OLO Connector Rings, replacement nibs, and other accessories are available. Marker bodies are color-coded for quick nib identification. The black marker body identifies the brush nib, while the dark gray marker body indicates the chisel nib. All OLO nibs work with all OLO Replacement Ink Cartridges.
Note: Nib and standard marker cap are not included. Reuse your marker cap and nib (or replace the nib) from your empty half-marker.
This set includes every color currently available in the OLO range, combining the original 160 colors with the newest 96-color expansion. Together, these colors form a balanced, comprehensive palette designed for smooth blending, consistent tonal transitions, and versatility across every color family.
With 256 thoughtfully developed colors, artists can build custom marker combinations, refine their workflow, and explore a full spectrum of hues, values, and grays. This palette includes Cool Gray, Warm Gray, Red Gray, Neutral Gray, and OLO ZERO, a colorless blender designed to support smooth transitions and controlled effects.
