Add a bit of color to your storage with limited-edition Storm Blue lids. Like all Good Grips POP Canisters, they're designed to stack securely for space-efficient storage. Use them in your pantry or kitchen cabinets - or in your office, playroom or craft room. They feature the new slimmer shape and lids that come apart for easy cleaning. They're ideal for preserving the freshness of all your favorite dry food staples. Simply push down on the lid's button to create an airtight seal; press again to open. And under the lid of larger sizes, there's space to store a convenient Scoop, Date Tracker or terra cotta disk to keep brown sugar soft (sold separately). This set of three lets you instantly organize anything from tea and coffee to sugar to pasta and more. The patented lid design features a silicone gasket with a flexible "fin." When you push the button, the gasket expands, pushing the fin against the POP Container walls to create an airtight barrier. Being able to pull the lid off without using the push-button does not mean the lid wasn't sealed.