I have either used this or something identical, the nylon cover makes them very slippery when wet, if you try and grab them they slip out of your hands, they're very light which is great until your in a wind or breeze, they then blow all over the place and it doesnt take only a couple of seconds to inflate, more like a good minute to get it up to the pressure required. Although having said this they are very good for space, maybe on something limited like a Phantom EVO or a small RIB where you do not have much locker room.
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