“These vacuum bags worked great. The zip closure is a little hard to do, if you have arthritis or problems with your hands, but I was able to close it, after multiple times. The vacuum device works quickly and efficiently, removing most, if not, all of the air from the bag. It allowed more items to be packed in my suitcases. The different sizes allows you to pack different items, like toiletries, undergarments or shoes. The device charges quickly”