This is for 12 Black Mouse Splat Balls.  Each mouse measures about 2.5" long (not including the tail) and each individually bagged. Splat Balls will "splat" when you throw them against a table or wall. Then come right back into shape, SOOOO COOL! As if that's not cool enough, Splat Balls are awesome stress relief squeeze balls too. You'll find yourself alternating between squeezing and splattering them all day. And, believe us, these are VERY visually interesting for you and anyone who sees your desk. Your coworkers will want to play with it too. Check out our wide selection of Splat Balls!