TUPPERWARE ROCK N SERVE VENTED MICROWAVE CONTAINER 1C 260ml HOT SNACK LEFTOVER B
It is Tupperware #3387 for the bottom and #3388 for the cover. It is in good condition with very light scuffing. 5 1/2" across, including handles x 3 1/2"" wide. It will hold 1 cup or 260ml. The bottom is clear and the lid or seal is a red.