Designed for humans more than kittens
It is a nice food & water combo bowl (we don't use the water, as we have a fountain), but the small lateral holes designed for humans to conveniently pick the tray up, are an irresistible temptation for kittens to be curious about and inspect with their paws. When your kittens are 7kg Maine Coons ... well ... the tray gets easily flipped and tossed around, resulting in a mess. Oh well ...