OXO Good Grips Glass Food Storage Containers are made for meal prep, baking, storing, and toting. Thoughtfully engineered lids come equipped with a leakproof, spillproof and worry-proof silicone seal that's easily removable for cleaning, plus four locking tabs keep food secure. Naturally BPA-free borosilicate glass construction means they can go from freezer to (preheated) oven without cracking or shattering. Smart Seal containers stack neatly in your fridge or freezer and nest in your cupboard while not in use. 

Highlights:

• Made from borosilicate glass and silicone
• Set includes : 40ml, 400ml, 800ml, 1.8ltr
• BPA-free
• Four locking tabs secure the foolproof, leak-proof lids
• 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
• Removable silicone seal is easy to clean
• Oven safe
• Freezer safe
• Refrigerator safe
• Microwave safe
• Dishwasher safe