After a meteor crashes to Earth, it leaves unexplained black rocks all over part of California. These aren't your ordinary space rocks though, when exposed to water they grow and form towering monoliths which crash back down to Earth to multiply at an alarming rate! These rocks threaten to cover the entire Earth and wipe out humanity forever! Oh and they also suck the silicone out of you if you touch them, leaving you completely unable to move. Brilliant! This retro movie poster tee features an amazing full-colour print of the artwork for the film - perfect for any b-movie buff!