About this item Made of advance food grade silicone and PP materials, flexible, reusable, durable, Non-toxic, Non-stick, latex free, BPA free. Microwaveable, fridge, freezer & dishwasher safe. Keeps in temperatures ranging from -20° C to 105° C. Collapsible and stackable, very convenient for take it out and saving more then 50% of the space after folded up. Great for cabinet storage. With clip-on lid, excellent sealing performance worry free from leaking. The transparent lid allows you to see the food without opening it. 5 Oz capacity, perfect for preserving liquid food or other foods like fruit, vegetable, cereal. And it's nice option of people go with daily portion control.