The Future Is Now. Or was, back in 1990, when SNK's most high-profile arcade game was released, the NEO GEO Multi Video System (MVS). The cartridge-based system allowed for easy swapping out of titles for operators and introduced gaming audiences to many long-running franchises, including "Fatal Fury", "Metal Slug" and "Samurai Shodown".
Available in any of nine colors. Ships with contact paper for easy application. Glossy vinyl has strong adhesive for indoor and outdoor use.
Measures 5" in diameter.
And no, SNK has nothing to do with "Attack on Titan" in this case.