Stackable Storage Jars Are Airtight! Organize your pantry, cabinets and countertops with these versatile Ball glass jars. With a stackable design, you'll save space in your kitchen and home. Plus, the silicone gasket provides an airtight seal to keep dry goods fresh. Super-wide mouth opening gives you easy access 360-degree crystal-clear glass lids and jars let you easily see what's stored inside Graduation marks on jars for effortless measuring Equally wonderful for home decor and craft storage Buy each size individually Set of 3 includes two 4-cup jars and one 9.9-cup jar--> Note: Not safe for canning or preserving.