Have you been searching for the perfect storage containers? The search is over! These POP canisters are airtight, stackable, space-efficient and BPA FREE! Your dry foods and goods will remain fresh thanks to the unique push-button lid. This lid creates an airtight seal with just the touch of a finger. Designed for modular stacking, these containers come in a range of square or rectangular shapes. The corners of the container allow for easy pouring. Not just for food, these containers are also great for craft supplies, small toys, and more! Each container sold separately. Constructed from plastic. Dishwasher Safe! Intended for Pantry and Countertop storage only; NOT safe for microwave or freezer use. Need some ideas for filling these containers? 4.0 qt. Container is the ideal size for a 5 lb. bag of flour or sugar. Assembly level/degree of difficulty: No Assembly Required.