These Rubbermaid® food storage and meal prep containers are lightweight, portable, and make perfect portion control containers. Square containers are perfect for sandwiches, sides, and snacks, and the colorful bases are easy to spot in the fridge. The QuikClik Seal allows the lid to audibly click to the container, so you know it's sealed tightly. The plastic containers are BPA-free, top-rack dishwasher safe, microwave safe for reheating, and freezer safe.