I bought these balls as practise balls for my Robot at home. These balls are surprisingly good with awesome bounce and impressive spin.
I compared these to other brands Andro, DHS, Nittaku plastic balls I had, and I can confirm they are at par(and better than some) with all major brands out there.
Highly recommend, give them a try and you will not be disappointed.
Rating: [5 of 5 Stars!]