I picked up this red lid as a spare for my Pyrex 3-quart rectangular baking dish, model 233, and it fits exactly as described. The raised center gives a bit of extra room, and it snaps over the handles securely enough that I can carry the dish without worrying. It is a simple replacement part, not a full storage container, so keep that in mind. The red color makes it easy to spot in the cabinet. Happy with it overall.