[Create power and strength] Rugged steel construction, durable nylon cord for use with standard discus, this hand wrist exerciser is a special high-efficiency trainer to improve your grip strength and endurance. [Adjustable strength] Easily adjust the strap of the strength, EVA handles can be effectively slip resistant, sturdy nylon rope and chrome parts, suitable for intensive sports training. [Compatible handles] PELLOR Wrist and Forearm Blaster features foam grip handles for comfortable and convenient exercise. It can help you quickly improve your performance at any activity, which requires grip and exercise your hands and wrists. [Size and shape ] Material: steel pipe + EVA + nylon rope. Size: tube length 37 cm, rope length 105 cm, the cylinder dowels diameters is 2. 6inch. This roller is compatible with standard size weight plates, allowing you to be in control of the resistance. [Weight-bearing] The largest weight it can bear is 40 pounds, and the negative weight disc is not included in this product.