Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Good quality. Put these under pressure and the zip never broke. I was able to arrange my packing without opening my suitcase. Also made it easy to use the packs in the hotel room and store my case away. They fitted nicely into my large case. I’m sure I will be using these for years.