Create up to 3 sizes, variety of color combo. Mix & Match Option 1: 1-Cup Lid & 1-Cup Bottom Mix & Match Option 2: 1-Cup Lid & 2-Cup Bottom Mix & Match Option 3: 2-Cup Lid & 2-Cup BottomContainers nest together for simple, compact storage and are leak-resistantContainers and lids are microwave, freezer and dishwasher safe. Non-toxic, food safe and BPA-free. All pieces are interchangeable. Never hunt for lids again. Ideal for RV, camping, kitchen, workplace and school.