Airtight Design: OXO POP Containers feature an airtight, space-efficient design that keeps dry foods fresh and your pantry organized. Stackable Shapes: New shapes and sizes stack perfectly with all POP Containers and can be customized to fit any space. Convenient Fill Line: A handy fill line makes it easy to store staples like cereal, flour, sugar, pasta, rice, coffee, nuts, and snacks. Accessory Compatibility: This container has an A lid type and is compatible with labels, date dial, leveler, coffee scoop, dusting scoop, and half cup scoop. Accessories are sold separately. Easy Operation: Push the button to engage the airtight seal. The button doubles as a handle for the lid. Always use the button to open and close. BPA Free: Made from BPA-free materials for safe food storage. Dishwasher Safe: Top-rack dishwasher safe for easy cleaning.