Tupperware 267431 Microwave Crystalwave GENII Divided Dish - Aru

The box and lid are made of a unique CrystalWave material that can withstand temperatures between 0°C and 120°C, so you can use it to reheat three different ingredients in the microwave and save time and the use of additional tools. Be sure to open the valve before heating to release steam heating. 

The polished part on the valve indicates were to press the valve to open. To keep the contents in the refrigerator fresh, the valve must be closed tightly. The large tab on the lid makes it easy to open, even when the box is full. 

The innovative Color ControlTM coating on the inside of the box significantly reduces long-term product staining.