*update- with a new bag of flour, an empty of the tallest square container and a LOT of tapping to settle i did get a 5 lb standard bag of flour in it. There was absolutely no extra space so you wont be topping off and will have to use it all before refilling. I also moved some rye into the tallest square one the same way and counted 14 cups (roughly).These are nice and clean looking but could use more options. i need to store 5-10 lb bags of flour, large bags of rice, etc and you need two or more biggest for that. Could also use sets of just one size - we do a lot of dry fruit and nuts and thins so i’d love to just get 8 of the middle sizes for example. The lids are a bit bulky but they are all white, vacuum sealed, and allow secure stacking with a lip.I’ve purchased various air right containers over the years, but I’m pretty sure these will be my last purchase. They are exactly that - AIR TIGHT! I love the different sizes and how easily they stack in my cabinets. They also go right in the dishwasher for an easy clean up.Works perfect as expectedso far so good. i got the 10 pack on sale for 40 something dollars and i think theyre a great replacement fo rthe pricey oxo ones. so far no complaintsI love these containers. I am going to order more. I wish I could get them individually as well. I need more of certain sizes. Overall I love them.Perfect storage containers!!!These are amazing! Besides it not being pop up, it is very similar to OXO containers! I love them!THEY WORK