Superhero Stress Balls (pack of 12) by CarnivalSource.com! Combat stress like a superhero with these themed stress balls. A great giveaway for comic book enthusiasts, these colorful foam balls feature a popular pop art phrase such as POW!, SNAP! and BAM! pulled straight from the pages of their favorite comic. Great for kids and adults alike, they are a must-have for your next superhero-themed event!Find more great items like this in our Superhero Party Theme category here at CarnivalSource.com. Combat stress like a superhero with these foam Superhero Stress Balls! This pack of 12 features 4 assorted designs/colors and popular pop art phrases like POW!, SNAP! and BAM! Perfect for kids and adults alike, they are a great giveaway for comic book lovers. Each ball is 2.5" diameter and ships from Missouri warehouse within one business day. Find more great items in our Superhero Party Theme category here at CarnivalSource.com!