Amazon calculates a product's star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers and factors that establish reviewer trustworthiness.
Within 6 months of purchase there was rust formation. The adhesive hook is brilliant so far but the description is deceptive and misleading with regard to the fact that it states it cannot rust. Although it is cheap the fact is that it does rust. I bought 2 so i changed it in 6 months.