Bought solely for flight approved clear bag, which is very much not suitable. The dimensions are fine, but the capacity is way too big. Not great to find out at security and have to rearrange and throw stuff away. Other bags are ok, but didn't need.
Really helpful, strong, transparent and useful sizes. I find I can pack much more using these cubes. I can actually see the items in the toilet bag, which is helpful. I used to stress a bit about packing, but it's much easier with these. I would say that you could fit enough clothes for a week (and I am not usually a "travel light person") into the two bags, and then fit them both into a carry-on bag quite easily.
I'm impressed enough to have ordered more as presents, I'm sure my friends will find them handy, too.
I found these did in fact help me pack for my trip and stay organised, it meant I only had 2-3 things to manoeuvre around, and they kept everything neat. I got these to go in a Cabin Max Capital Lightweight Approved Carry-on Cabin bag 50x40x20cm 40 litres (Rome) and felt that that they could be better sized to maximise the space but still will use them again and very cheap compared with some premium brands. I don't use them enough to know if you get better quality if you pay more but for a tenner they are worth having. I have one of these clear plastic wash bags and they are worth the price along to avoid security scan hassles