I want to be very brief, because another weeks after my last vacation, where we used these mattresses, the anger in me auftseigt when I think of this product and its suitability and does not want to waste many words on this review.
Due to the low price, I did not have great demands on the mattress. But at least I was expecting that they will withstand a week Camping holidays in a tent (on soft, not stony ground). Two mattresses were ordered. With my colleagues tore after the mattress inflated for the first time, two valves as if to sink this closed. In my case a valve thereby crack. The cracks on the valves ensured that the respective chambers could no longer hold his breath. The mattresses were still disposed of on vacation.
I advise everyone of an air mattress for camping requires a qualitatively higher quality model and rate of this clear here.