Anemibala enjani amabhola e-tennis?
Context:Ekuqaleni amabhola e - tennis ayenziwa ngezindwangu ezihlanganiswe ngentambo futhi zigcwaliswe ngezimpaphe. Amabhola ethenisi anamuhla enziwa ngerabha elivulekile elihlanganiswe nefilakisi. Ngokwesiko elimhlophe, umbala oyinhloko washintshwa kancane kancane waba optic yellow engxenyeni yokugcina yekhulu lama-20 ukuvumela ukubonakala okuthuthukisiwe. Amabhola e-tennis kumelwe ahambisane nezindinganiso ezithile ngobukhulu, isisindo, ukusonteka, nokugxuma ukuze avunyelwe ukudlalwa ngokomthetho. I-International Tennis Federation (ITF) ichaza ububanzi obusemthethweni njengobungu-65.41<unk>68.58 mm (2.575<unk>2.700 in). Amabhola kufanele abe nesisindo esiphakathi kuka-56.0 no-59.4 g (1.98 no-2.10 oz).
Amabhola wethenisi anamuhla aphuzi.