I purchased two 50 packs of the white ping pong balls and both arrived with 50 undamaged balls. I compared them to another expensive brand's high end ball and they performed as similar to each other as you would expect two balls from the same package to perform. They play normally and although I haven't used every single one yet, I've used the majority of them and they don't appear to be oblong or otherwise out of spec. Unlike the softer one-star balls, these resist being dented to the same extent as the expensive ones. The only thing I can't review is their durability as I haven't had them long enough. However, at the current price, I would have to go through at least three of them before equalling the cost of one higher end training ball.
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