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.
Well, you get what you paid for. Took forever to come in and no bag for storage was included like description said. It’s just a cheap piece of felt with markings on it and creased up so much that I doubt it would ever flatten out. You live and learn and if I could give it zero stars, I would. Not worth it to buy so save your money and do more research. Still looking for a good one.