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.
This product is terrible. If the tip is not upside down it does not work. The angle is all wrong and fine tips just seem to blend into one thick line. I’m better off grabbing my niece’s brown textas from her colouring in set. Waste of money - waste of plastic