Come and see our amazing products. It is countable and support 10kg weight, made by ABS material, these hand grip strengtheners seriously strengthen your hand grip and forearm. People have seen great results using these only 2-3 times per week. Exercise your hands and foremra from anywhere whether you are at home, work, walking, in the car or doing your favorite sport as the it is lightweight easily portable. These are perfect for athletes (baseball, basketball,etc.) and musicians ( pianists, violinists etc). Pls confirm with us about the packing info, stock color and exact production time before placing your order