These are Jack's chess clocks. They are used to count down the time during chess games. You want to know something else about chess clocks? The airport security guys think they look like explosive devices especially when you put them in your carry-on bag and then leave them ticking!! Ha, sorry guys. I actually didn't see it, I was getting the metal hip screening at the time. Jack says one of the TSA guys was pretty scared, but the other saw quickly that it was just a clock. Anyway, we're here!

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