Rubbermaid 18-Piece Easy Find Lid Food Storage Set 18-Piece Set Includes Three Each: 0.5-cup, 1.25-cup, and 2.0-cup square bases with matching lids Easy find lids snap to the bottom of the container and to each other to make finding the right lid quick and easy Thick container walls are durable enough for everyday use super-clarified bases make it easy to see what's inside Graduated sized containers nest for compact storage. Square shapes take less refrigerator space. Containers are microwaveable, freezer-safe, dishwasher-safe, and BPA-free