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.
While these are good overall value, dont expect them to last long. One was unusable out of the box. We typically ruin them when we kick them into a tree during kickball. This tears the thin rubber. That's why we buy 5 at a time.
The kids are loving these new spikey stress balls I picked up. They can do so many activities with them, bouncing, kickball, dogdeball, anything they can think of really. The only rule I have is that they don't bring them in the house, when kids start bouncing things around indoors it's only a matter of time before something expensive breaks.
Got these for my gym class at middle school and the students are enjoying them. We love playing kickball and now it's even more fun with these big spikey balls. Easier to kick and makes throwing and catching more fun. The kids love it!