Oh, I see over there on the counter by the register that you've got a list of today's deal and discounts, but it doesn't look like a chalkboard.
Yeah, it's made of different material.  You don't use chalk on it.  It's this shiny material that's pretty amazing.  You can write on it like a chalkboard, but you're using a marker, and then you can erase it with a napkin.