I bought the same product 3 times within a month and they all broke in the first few days of use. I didn't overfill it at all, I only put in 2 long sweaters and 2 dresses. I bought one initially, followed all the steps perfectly and carefully because I have been using vacuum bags for years. For some reason that I couldn't understand, it was losing air from somewhere. Okay, I thought it was defective and ordered 2 more. Out of the second ones, the first one closed perfectly, held everything well, but after three days it started to lose air, even though it was screwed on properly. I decided to throw it away and use the third one that I had bought for something else, but it was missing the safety lock, so it slowly and steadily let in air. It's such a shame because if it worked, it would have been very practical