Amazon has the Pyrex Simply Store 6-Piece Rectangular Glass Food Storage Set for only $11.29 (Reg $19.99) with Prime Shipping. The set includes (1) each 3-cup, 6-cup, and 11-cup Rectangular Dishes with Blue Lids.
If you are not already a Prime Member you can join with a 30-day free trial of Prime, as a student with Prime Student, or as part of Amazon Family.
Please note that prices are subject to change at any time and may have increased or decreased since this offer was posted.