Chameleon Art-Colorless Blender Marker. Chameleon pens have black dye-based ink that is permanent when dry and compatible with alcohol-based inks. Whatever you draw will not smear when combined with Chameleon Color Tones permanent alcohol inks. Use to overlay, lighten or continue blending already applied color. Use as a liquid eraser to push color back inside the lines and help eliminate mistakes. Use over any color to add texture and patterns. This package contains one 5-1/2 inch double-ended pen with two Fine Line nibs (0.6mm and 0.4mm).