I have an older version of this and want to get a couple more of the same size - so the lids will be interchangeable. This current product isn't the exact dimension of the one I have but I'm assuming the description is simply wrong (a 9 7/8" lid wouldn't fit a 10 1/2" product!) Outer Dimension: 10 1/2" x 7 3/4" x 3", lid: 9 7/8" x 7 7/8" x 1/2"