1. it offers the benefit of unstable training with a challenging load
2. make an excellent tool for overall body training
3.the available weight is from 10lb to 50lb
4. one size for 5 different weight
5.Our design/material/functional of our bag is unique and durable in market.
6.Customed LOGO is welcomed
7.Normal Packing: each in a polybag / each in one master carton
