The OXO Good Grips pop containers are airtight, stackable, and space-efficient, making it easy to keep your dry foods fresh and your kitchen organized. The containers have a unique push-button mechanism that creates an airtight seal with just 1 touch. The button also serves as a handle to lift off the lid. The containers are designed for modular stacking so that you can efficiently organize your countertop and pantry. Square and rectangular shaped containers make the most of any storage space, while their corners allow for easy pouring. Also great for use in the garage, sewing room, playroom, and more. Lids come apart for thorough cleaning. BPA free.