Have simple table tennis balls wanted to be able to play with it during training. I am not a professional player, but I train regularly 3 hours in a week - and has been for over 15 years. The first three balls went alone on it when playing. No solid balls, not playing on edge - after ten to twenty balls forehand counterattack went broke the balls. After the first three balls have gone so badly within less than five minutes, I had the remaining three balls thrown directly in the garbage. Absolutely no profitable investment - in the future I will definitely not order again, but refer as usual about my club.