Save time and money: most meal-prep containers dont last. They crack after a couple uses and cannot even be used in the microwave without burning or melting. Not Enther, these portion control bento boxes come with 20 pack high-quality containers with lids. You can now cook your meals at home for this week ahead and enjoy healthier lunch with these food containers. Microwave, dishwasher & freezer safe: made of the highest quality BPA, PVC and phthalate free materials that are 100% food safe. Able to withstand temperatures from -40 to 250 d