You can't go wrong with Pyrex!  This set is especially nice because of the different colored lids.  The size of this glass storage set is also nice because of the selection of sizes included.  The lids have the cup value on top which comes in handy when you know what size you need.  I especially like the green colored lids  I would like to see a set with all green lids!     Made in the USA!!!!     A good buy.