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.
Some of the bottles were dented and out of shape which resulted in them not standing up easily. I have yet to see how they travel. I expect them to travel well and hold my liquids securely. They took longer than I would have expected to arrive.