Everything about these bowls' design is intelligent. The set of three are just the right sizes for mixing everything you mix. There are measuring lines inside. Easy pour, no-dribble spouts. Tilting, non-tippy bases. Microwave and dishwasher safe, they also nest compactly and are easy to store. Like we said, smart. But read on: Their 100% plant-based materials are grown and harvested from the earth, and going back to it is part of the plan (they'll compost within two years). That's better than clever: it's downright wise. Choose black and gray, purple and lavender, or red and pink.