You already can't do without them in the kitchen, but when you add a lid which transforms them into a storage container, you'll use them everyday! In ceramic, they can be used in the oven and placed in the fridge. Plastic lid. Sold in 6s (2 reds + 2 blues + 2 whites). Diam. 9 cm, Height. 5 cm approx. Capacity. 150 ml.