This is a 30ml refill for any of the Chrome Effect pens or use it for airbrushing  

Liquid Chrome Effect can also be airbrushed. Simply squeeze the liquid into an airbrush bowl or use with a fine tip brush.

To protect the shine and keep from marring, use Spaz Stix Ultimate Clear Coat.

Disassembly of the pen for refilling can be tricky.  Here's a 3 min. video to make it easier.

One 30ml refill tube.