dysmuth < thats the ebay user name, you gotta ask him though whats the best deal he can give shipped. The balls he offered had very good specs "pins vary and tops, pins from 1 - 2 and 2 - 3 and tops are as low as 2.0 to as high as 4.0. Most are in the 2.8 - 3.4 range".< thats the specs on the tsunamis.