The pen is refillable and it has a 15 mm tip that can be changed as well

Filled with black water-proof pigment ink

crisp lines

The tip is cut in a 45 degree angle

These pens are filled with water-based ink

zig kuretake clean color real brush pen 6 set smoky colors Idwrap The pen is refillable andThe ZIG Clean Color Real Brush markers have a smooth nylon bristle tip and are filled with water based dye ink. In this 6 piece set you will get a portrait color scale, perfect if you would like to try out the Zig Kuretake Clean Color Real Brush pens. The markers are perfect for illustrations, sketches, brush lettering and bullet journals. These pens also work super well for adding tiny details. Tip! Use the ZIG Clean Color Real Brush on to top of