Thank you for viewing! Nitori Features a 4-sided lock for a tight seal! You can safely store liquids. Made of glass, resistant to acids and salt. Can be sterilized with boiling water, making it hygienic. - Microwave, oven, and dishwasher safe; not freezer safe. * When heating in the microwave or oven, remove the lid before use. * Not for use in high-output appliances (commercial use) such as microwaves and ovens. 300ml - 2 pieces 510ml - 2 pieces 1040ml - 1 piece Smart Flap Food Storage Containers - 3 pieces I am selling these because I no longer use them. Please understand that these are used items before purchasing.