... 4.8 to 5.2gSuit for championshipAdvantage: high performance of durability and stabilityOutstanding controlPrecise fall pointBest playing feelingPackage & Delivery ... FOB Shanghai, ChinaWe provide products above and :--All kinds of PU / PVC / rubber basketballs,footballs,soccer balls,volleyballs ... in the near future. Badminton Shuttlecock, Class A Feather, two layers of head .75 to 79 Speed ,2140