TrueSeal Rnd Storage 10pc Blue. Anchor Hocking Glass Food Storage Containers are made with Tempered Tough glass that is up to 100% stronger than regular glass, and is Microwave, Oven, Freezer, and Dishwasher Safe. TrueSeal Food Storage is the perfect meal prep container: prep, bake, and store all-in-one. And our TrueSeal lid is designed to prevent leaks and spills, making it ideal for life on the go. Our food storage features a 5 year Warranty backed by our company. Set Contains: (1) Cup Round, (2) 2 Cup Rounds, (1) 4 Cup Round, (1) 7 Cup Round TrueSeal Container with Mineral Blue Lids. Our TrueSeal BPA-free lids features a 100% airtight seal designed to prevent spills and leaks and pure glass container does not stain or absorb odors. Our TrueSeal Food Storage Containers are ideal meal prep containers: Prep, Bake, Store, and Reheat all in one container.Tempered Tough Glass is Microwave, Oven, Freezer, and Dishwasher Safe - Lids are Top Rack Safe, Anchor Glass is made in the USA and is backed by a 5 year Warranty.