Measuring 1.25" across in diameter, this round button features an image of Batman's symbol layered with.....a skull. Because Batman....He's a tough so and so. You get in his way? You walk down his streets and throw a rock into the local malt shop? You're done. It's a Bat-thermos filled with Bat-acid in your face...hence the skull motif, here. Yeah, don't go into Gotham City struttin' your stuff. Nope, don't do it.