About the product: 18 PIECE SET – This glass food container set includes 9 glass containers of varying sizes and 9 matching lids. This is the perfect solution to store all of your prepared meals, snacks, and leftovers. 100% BPA FREE AND FDA APPROVED – 1790 Glass Storage Containers are 100% FDA Approved and BPA Free, and made out of borosilicate glass for easy heating and durability. They’re a great size for meal prepping and leftovers for the whole family! OVEN, MICROWAVE, FRIDGE, FREEZER SAFE – heat resistant up to 450 ºF. They’re stain and odor resistant too – so you’ll enjoy them for years to come because they simply will not discolor, warp, melt or chip like the old ugly plastic yellowing containers. NESTING DESIGN – Gone are the days that you have to worry about stacking precarious piles of plastic in your kitchen cupboards. This set was designed with nesting, so the smaller containers fit inside the larger containers for ease of storage. Every piece of this set is dishwasher safe, too – so you never have to worry about hand washing each piece.