New super-speed rubber bladders are inserted into all CSK speed balls for extreme balance and greater recoil with each punch. Speed ballITEM NO.CSK601TRANSITE TIMEDetermined based on the actualMATERIALQuality PUPACKAGECartonCOLORRed,Black,BlueSPECIALCan be customizedSIZEFree sizePOSITION High gradeKEY WORDboxing speed balls csk PQTENT NO. UNITpieceSAMPLE TIME About one weekPAYMENTT/T;Western ...