Brand: DHS (Double Happiness Sports) Model: DHS-1002, DHS 2-Star 40mm Table Tennis Balls Level: professional training and conventional games Color: available for orange and white Recommended features: 1. Professional quality and excellent for all-around playing 2. Ball for training of China T.T. Team ABOUT DHS T.T. BALL: DHS, the professional table tennis maker has its unique view point on the study of materials and formula, making technique, the mutual influence between table tennis and motor function. DHS makes constant efforts to offer the technical support to the development of world table tennis sport. It made the first table tennis ball of China and the first designated table tennis equipment for world championships. Besides, it is the first in the world to develop 40mm table tennis ball.Top Table Tennis Games sponsored by DHS:The 30th Olympic Games (London,2012) The 29th Olympic Games (Beijing,2008) The 28th Olympic Games (Athens,2004) The 27th Olympic Games (Sydney,2000) The 51st W.T.T.C. (Rotterdam,2011) The 50th W.T.T.C. Team (Moscow,2010) The 49th W.T.T.C. Team (Guangzhou,2008) The 48th W.T.T.C. (Shanghai,2005) The 47th W.T.T.C. Team (Doha,2004) The 47th W.T.T.C. (Paris,2003) The 26th W.T.T.C. (Beijing,1961) ITTF Pro Tours (2009-2012) Men"s World Cup (2000-2012) Women"s World Cup (2001-2012)