Shaped like the famous aliens from the arcade game Space Invaders, these Space Invaders Stress Balls are a great way to get frustration out of your system! Fun and functional, these squishy foam balls help you take the edge off of otherwise stressful days - even those that aren't under the threat of an alien invasion. Arm yourself before the alien apocalypse while you keep your blood pressure down with these Space Invaders Stress Balls!  This is for one stress toy. When ordering please specify whether you want a green one or a purple one.  If none is chosen we'll just pull one of the two colors.