Leak-proof design: The lid of lunch container is equipped with tight locks sealing up tighter than those with rubber rim Safe material: The lunch box uses food grade safe material which is safe to human health and in fashionable appearance Sacuce container compartment: There is a sauce container at the middle of to-go salad container for storing , sauce, and other seasoning 4 Compartments storage: 4 compartments can separate salad, snacks, fruits and other food. It is convenient to taste and mix them up as you want Easy to carry: The size is convenient to carry for work, picnic, travel. It is available to put lunch box into your backpack