New Lid A-12-C , Will fit 2 1/2, 4, and 5 Qt Casserole dishes 10" x 10" square.

New Lid Pyrex A-12-C 9 3/4" Inner lip 10 1/4" outer edge. Will fit 2 1/2, 3, 4, and 5 Qt Casserole dishes 10" x 10" square.. Inner-to-inner lip measures 9 3/8" outer-to-outer lip measures 9 3/4". No chips, no cracks, no rough edges,