This storage container set includes a sturdy 1150 ml square container with handy cutlery, perfect for lunch on the go Unique locking system making these boxes reliably 100% leak-proof, making for a mess-free lunch on the go Heat resistant wings that stay cool when your food is hot making this container Easy to retrieve from the microwave All push & push boxes are long-lasting and made from non-toxic BPA free plastic, so you can be reassured that no nasty chemicals will be transferred to your food and that the plastic used is sustainably sourced Microwave, dishwasher Safe and freezer safe.