Diameter (mm):63mmCategory:Training BallWeight (g):172g/pcsRebounce:1.3mcolor:fluorescence color tennis training ballorigin:Zhejiang in Chinapackaging:3pcs/setexternal packing:opp bagcertificate:CE，SGS，BV，BSCI，ISO 9001export:US，UK，FRANCE，GERMANY，AUSTRALIA，RUSSIA，SPAIN，BRAZIL，MEXICO，ITALY，INDIA