... enterprises that produce heavy athletic exercisers, for example,boxing,free-hand-boxing,taekwondo,wrestle,judo,karate and so on.The company ... weight is from4-25lbs .Right now we offer three materials : High quality PU , Microfibre Leather , Top Cowhide leather Sample is available to ... , blue ,green , yellow and so on. OEM service is welcome. High quality PVC Medicine Ball