tennis ball Size:2.5" Weight:56.5-59.4gr Material: Chemical fiber, rubber Practice/Training/match tennis ballSize:2.5"Weight:56.5-59.4grMaterial: Chemical fiber, rubberRebounce:80-100 ,100-120,130cm 134-147cmPacking: 3pcs/tube,40 tubes/ctnN.W/G.W: 9/11 KgCTN size:65*41*23 cm * large quantity supply,good quality and durable * the design,logo,color and other customization is available* We sincerely ...