... your hand,Grip product Item No.:IR97001 Name:Grip ,to improve the power of your hand material:pp ctn:49*48.8 ... 12/11kgGrip ,it is a gym equipment and can improve the power of your hands .it is good fot your ... ,maybe it is a necessaris for your exercise.if you are interested in this product ,pls send me message ,i will ... give a good best price.thank you ! Grip,to improve the power of your hand