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.
Its a pair of Good Strong coated round magnet . Fits well on fridge. Im using these since a month but the magnetic power seems to remain strong , which is very much desired. Quality item with quality price.