These tubes are huge. Review rating depends on what you want to use them for. If to be used as a permanent flood barrier that will not (in the time that it is in situ) need to be moved or stepped over, then they's get 5 star rating. However they are so big that they take a fair bit of filling and once filled, they are going nowhere. Difficult to step over and impossible to move - say to allow a car out of a drive etc. Well made and solid bit of kit but don't underestimate the size and weight of them when full.
Ionut 
