I am going to move from Flordia to Cali and order these vacuum bags for traveling based on the good reviews. Out of the first 4 bags I got, 2 were sealed perfectly when one leaks very bad and the other one leaks slowly. I called up Overstock and the customer service was very helpful and asked the warehouse to ship me another set of 2 bags. Since I got 50/50 good/bad bags last time, I assumed I would get at least 1 good bag this time. Guess what? Both leak!! The bags look strong but what is the point if a vacuum bag leaks? I wonder if the company has any kind of quality control. I don't know why other people all give good reviews or maybe I just had bad luck. I will just ask for money back this time and buy some other bags from Target and pray they will work.