Those sauce cups are small, colorful and 100% hermetic. They perfectly fit in both monbento� Original and monbento� Square. The new generation of the sauce cups monbento keeps its main visual characteristics: it is composed of 2 containers and 2 lids. The opening works with screw cap and silicone. For all kind of cold sauces: mayo, ketchup, salad dressing or even salt. Its small size is very convenient.