Shoot better in any light. These pens provide a fast and easy way to touch-up chipped, dull or scratched sights. Super Bright Pens contain a fast-drying, lead-free paint with superior adhesion and durability. Use on front and/or rear sights for better use. Note: Apply two layers of white undercoat, then neon green or red to make your sights even brighter. Consumers often think that the pen is dried out when they receive it. The tip is white and dry. The pen needs to be shaken and then you need to press down on the tip a few times to get the ink flowing..