I have the top of the line food saver machine with the accessory. I also bought the handheld accessory to seal my new containers easier. Bought the new version of the containers. $50 for 3 containers, you would think they would actually work for their only intended purpose. I follow the directions to the letter yet my containers will not stay sealed. I get about a 6 hour vacuum seal before the indicator pops back out. I didn’t wash these in the dish washer they shouldn’t be warped. I’ve had them 3 days.