From OXO, this 12-piece glass container set features: From taking meals on the go to storing them for later, OXO good grips smart seal glass food storage containers are the smart way to keep food fresh. Four locking tabs and a removable silicone gasket work together to create a truly spill-proof seal, for no leaks and no worries. Made from naturally BPA-free borosilicate glass Stain-proof and smart seal containers stack conveniently in your fridge or freezer, and neatly nest in your cabinet The elegant design moves seamlessly between the kitchen to your table. Set includes two 4 oz. rectangle, two 1-cup round, 1.6-cup rectangle, and 3.5-cup rectangle glass containers Four locking tabs secure the foolproof, leak-proof lids Durable borosilicate glass containers designed to go from freezer to oven without the need to fully thaw. Smart seal glass containers nest and stack for convenient and compact storage Lids are interchangeable between the same size glass and plastic smart seal containers and removable silicone seal is easy to clean Oven, microwave, freezer, and dishwasher safe Imported. California Proposition 65 Warning not applicable