Gave these as a Christmas gift.  They tell me weekly how much they love using them.  The size is right and they like the versatility.  I was extremely pleased with your quick delivery and fast on-line responses.  They are pleased with the quality of the marble, finished edges, smooth surface, and the fact that they are raised above their counter's surface, so there are no scratches on their countertop.  They use them for defrosting, hot pans, cold and frozen items, candy, cutting boards, and, oh, yes, a pastry board.