What's that shining in your glass? Did somebody call for the Caped Crusader? Our Batman Symbols Ice Cube Tray can fill your party guests' cups with tiny little cries for help from Gotham City and that nice Jim Gordon fellow. This grey, flexible rubber tray will create 12 frozen Batman symbols, and all it asks of you is to fill it with water and slip it in the freezer (unless you've got Victor Fries on speed dial). There...that wasn't so hard was it? Now it's just the waiting, and we all know that's the hardest part. But it will be worth it....it will all be worth it when you hear that satisfying clink of icy Batman symbols in your rocks glass. Trust us on that one.Not dishwasher safe All sizes are US sizes.