Add embellishments to your lettering designs with these 'Gelly Roll' metallic gel rollerball pens in gold and in silver. Both have a pearlised, reflective sheen, smooth-flowing 1.0mm ball with a 0.4mm line and archival quality metallic ink.
 
They write on white or black paper, and over brush pen lettering so that you can add patterns onto your brush lettering.
They write on matt or glossy surfaces and have a consistent line to the last stroke!  Waterproof and Fade-resistant, they won't bleed through paper and they're non-toxic.