Black sclera contacts are so popular in Cosplay or Halloween party.
There are so many characters have all black eyes.
To costuming like them, you need absolutely black sclera contacts.
The demons or evils have all black eyes, if you wanna be a real demon on the party,
black sclera contacts are indispensable.
When Professor X felt the evil force from Apocalypse, his eyes became all black,
thanks to excellent black sclera contacts.
And when Jean Grey releaseed her Phoenix inside,
she needs also black sclera contacts to shows her uncontrollable evil power.