The size and the different colors, however you keep sending these requests for review, but haven't acknowledged my email to you about the "poppy" colored one being broken and needing to be replaced. Also. you sent 2 lapis colored ones instead of 1 lapis and 1 turquoise. I like the product, your service not so much, especially since the person who taped the bubblewrap knew this bowl was broken because the broken piece was caught in the tape, completely outside the bowl,  and they shipped it anyway!