I was hesitant to buy this "6 piece" set for $24, because I was worried that it meant 3 glass containers and 3 lids. Sooo many containers are advertised that way! But I bought them, and sure enough there are 6 containers and 6 lids. Great bargain! I bought these because I hope to make my own "lean cuisine" type meals and store them in these. I saw a youtube video on that topic, and if I go to the trouble to make healthier frozen meals like that, I darn sure don't want to put them in plastic containers just for chemicals to leach into my food when I heat them up. I know people have complained about these lids being a little loose, however, that is not really a concern for me because I would never put things like soup in these (I have pyrex bowls which have lids that work fine for that). Aside from using these for frozen entrees, I plan to put leftovers like meat loaf, spaghetti, etc (ie. things that aren't very runny). Also, I'm not worried about my "lean cuisine" meals drying out in these because the video I saw recommended using saran wrap to push down on top of the food and then the lid can go over that. If I do experience problems or dried out entrees, I will update this review. I've been purging all of our rubbermaid stuff over the past few months and replaced them with Pyrex bowls, and now these rectangular containers. I have been VERY happy with all of the Pyrex containers I've bought so far, which includes a lot of bowls (4 seven cup, 5 four cup bowls, 6 two cup, and 8 one cup bowls, plus these 3 cup rectangular ones). Bye-bye plasticware!