Tupperware Rock n' Serve Microwave Rectangular Container 3381B-1 & Lid. Sheer container with blue lid. It is a vintage item made of plastic, with a snap-on lid and one compartment. The container is microwaveable and measures 11" in length, 7.25" in width, and 2" in height. The set includes the container and lid, suitable for storing and serving food.
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