Clear locking lids with air hole for easy storage and freshness 100% leak-proof and airtight design for meal prep and food storage Freezer to oven safegreat for cooking, reheating, and storing food Dishwasher safe for easy cleaning Crafted from high borosilicate glass for durability and long-term use Lids are BPA-free plastic with a removable gasket for airtight sealing Stain and odor resistant for clean, fresh food storage Stackable design for easy and efficient storage Oven, microwave, and freezer safe, withstanding temperatures from -20 to 520 Includes 12 containers with various capacities