This is a set of 20 large to small variety of high quality vacuum storage bags and standard storage bags r r very easy to use simply put your items in the bag seal and vacuum the air out and your storage problems are solved r r the vacuum storage bags can be used with any standard vacuum cleaner with hand held attachments r r the bags can be re used time and time again ideal for the storage of wintersummer clothes when out of season ideal for the storage of bedding when not in use ideal