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.
Worst product I swear ... don’t waste you money. You can use good quality of glass cleaner or thiner for seat leather, dashboard, even for interior door for all spots ) you can use other compound which can help to reduce minor scratches and give your car shine. Totally disappointed