Smaller than expected but still functional. The largest canister will hold a 2lb bag of powdered sugar, which is perfect for measuring. I use the middle container for brown sugar and it has kept it nice and soft. (it has been in there for 2 months now and hasn't dried out. Smallest canister is for nuts for baking. So all in all - good set for baking needs just not what I was hoping for. I actually went to Tupperware to buy canisters large enough for flour and sugar. ;)