... health through taking this exercise SpecificationProduct size: outside Diameter: φ8.8cm, Inside Diameter:φ4.4cm Product NW: 100gPoundage: 50pound, ... .5cm , GW:11kg Description1,100% silicone material, SGS approved 2, Enviromental recycle3, Promotion Olympic gift4, OEM, ODM will be ... price to fulfill customer satisfaction can be commited. 2012 New arrival Fitness Exercise Silicone Hand Power Grips