Isn't it obvious? They are contact lenses with a focus on Halloween. Now some people will wear them outside of Halloween and that's fine too, but Halloween Contact Lenses stand around primarily around October. They are contact lenses with crazy designs and crazy colors on them, making you appear freakishly amazing. You can be a cat, drag, a demon or zombie... You could have solid white eyes or something with a creative pattern.
They are essentially Gods gift to human-kind, if you're in to fund things that is 🙂