I ordered 4 packs for a trip to long-haul aircraft for all my family they arrived well packed but it took aerate long as they feel strong, that does not matter I have not tried them before, unfortunately Because once the plane they all deflated at As (pillows for back and neck) Result = travel in unpleasant conditions with the regret of not having bought those sold on the plane that will not deflate them I do not recommend the course and asked refund