Aside from the obvious fact that JoyJolt glass meal prep containers are healthier for you and your food, they can also go from freezer to oven without breaking! And meal prep with compartments is always more fun and practical for practicing portion control. From leftover storage containers and lids to clear lunch box set for adults, keep it all fresh with joy! From food storage to meal prep, do it with joy and JoyJolt Glass Food Storage. • 5 Borosilicate Glass Containers with Airtight Lids • Leakproof Lids to Keep Food Fresh • 3-Compartment Containers • Lead-Free Borosilicate Glass • Oven Safe, Microwave safe (*container only) • Freezer Safe, Fridge Safe, (Container+Lid) • Dishwasher Safe